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Slackers Ninjaline - 36' Intro Kit - Includes 7 Hanging Attachments - Best Outdoor Ninja Warrior Training Equipment For Kids - Build Your Very Own Backyard Obstacle Course - Rated Ages 5+

4.6 4.6 out of 5 stars 386 ratings
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Purchase options and add-ons

Material Wood, Steel
Color Black
Brand Slackers
Load Capacity 250 Pounds
Fastener Material Stainless Steel

About this item

  • PLAY IN THE AIR- Have fun playing and training as a real ninja with our signature Slackers Ninjaline. Create your very own backyard gym. Watch your children play in the air and unleash their warrior within.
  • CONVENIENT AND PORTABLE- With its versatile design, the Slackers Ninjaline is easy to install and fun for all ages. Easily hang your Ninjaline between two healthy trees or wooden posts, attache your obstacles, and enjoy.
  • QUALITY DESIGN- Quality is our top priority. We use only the best materials for our outdoor play equipment. With the Slacker Ninjaline we made no exceptions. All components are carefully tested for strength and durability.
  • SAFETY FIRST- At Slackers, we are focused on creating safe, reliable obstacle course equipment, ideal for building up your inner ninja warrior. Our Ninjalines are rated ages 5+ and hold up to 250 LBS. Parental supervision required.
  • PRODUCT GUARANTEE - All Slackers products are backed by a promise, that if you are not fully satisfied with your ninja course accessories, we will work directly with you to make it right.
› See more product details

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Slackers Ninjaline - 36' Intro Kit - Includes 7 Hanging Attachments - Best Outdoor Ninja Warrior Training Equipment For Kids
This item: Slackers Ninjaline - 36' Intro Kit - Includes 7 Hanging Attachments - Best Outdoor Ninja Warrior Training Equipment For Kids - Build Your Very Own Backyard Obstacle Course - Rated Ages 5+
$79.99
Get it Mar 19 - 20
Only 12 left in stock - order soon.
Ships from and sold by Four Seasons Pool Supply.
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Slackers Ninjaline - 36' Intro Kit - Includes 7 Hanging Attachments - Best Outdoor Ninja Warrior Training Equipment For Kids - Build Your Very Own Backyard Obstacle Course - Rated Ages 5+

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Safety Information

Adult Supervision Required

Product Description

Slackers Ninjaline
Slackers Ninjaline
Slackers Banner
Slackers Banner

Slackers Ninjaline

Easy installation and take down means that you can take your training with you to the park, to a friend's house, or wherever you need to train.

Ninjaline hangs between 2 posts or healthy trees.

Ages 5+

Max weight 250 lbs

Adult supervision required

SLACKERS NINJALINE

Train like a Ninja with our patented Slackers Ninjaline intro Kit with 7 hanging obstacles. Create your own backyard gym, build core and overall strength, and increase self-confidence .

Includes new slackline design using 36’x2” 6,000lb professional slackline webbing so the Ninjaline can be used as a slackline to help build balance and agility and our exclusive ratchet has reinforced steel and a comfort Tpr rubberized grip handle.

The Ninjaline's 14 sewn-in pockets make moving the obstacles further apart as your skills improve easy. It includes obstacles that vary in skill level and you can add more to your line or change the order of the obstacles creating endless patterns.

SET INCLUDES

—

36ft NINJALINE W/ 6ft RATCHET LINE

  • 6,000lbs strength professional Ninjaline/Slackline with 14 pockets
  • Reinforced ratchet with TPR handles.

TRAVERSE RING MADE OF ABS

  • For two-handed jump movement down the line.
  • Can be used at the end of the line, where there are no pockets or over pockets with no carabiners or obstacles attached.

SET OF 2 GYM RINGS MADE OF STEEL W/ ABS GRIP

  • Great for using body weight to train and develop overall upper body strength and coordination.

2 MONKEY FIST KNOTS

  • Made of UV-resistant nylon rope.
  • These unique knots mimic a ball grip but are softer for a more comfortable grip.

2 MONKEY BAR HOLDS

  • Made of birch wood.
  • Unlike the monkey bars at the park, these wooden dowels can be spaced across two safety delta clip sleeves or use only one to create a triangle.

TRAVEL BAG & RATCHET COVER

  • Allow for clean, safe setup, and tidy, secure storage.

What's in the box

  • ratchet
  • strap
  • obstacles

    • Product guides and documents

    User Manual (PDF)

    Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    386 global ratings

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    Customers say

    Customers find the cargo strap to be a sturdy and well-made product that offers good value for money. They find it visually appealing and easy to set up. The strap is a great way for kids to burn energy and have fun while getting a good workout.

    AI-generated from the text of customer reviews

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    DurabilityValue for moneyVisual appealEase of assemblyEnergy level
    10 customers mention "Durability"10 positive0 negative

    Customers appreciate the product's durability. They find it sturdy and well-made, holding up well over time. The strap is easy to set up and provides a good balance for balancing activities.

    "...product seems well made, would purchase again" Read more

    "My 2 kids love to play on this. It's very sturdy and has held up with many hours of playtime...." Read more

    "...line and each metal joint and piece is very durable, built to last thousands of takedowns and reinstalls (which can be done in 10 minutes or less!)...." Read more

    "...Durability has yet to be an issue, though I would recommend taking it down when not in use...." Read more

    9 customers mention "Value for money"9 positive0 negative

    Customers appreciate the value for money of the cargo strap. They find it sturdy and easy to set up, with a high-quality setup. However, some feel the price is a little too high.

    "Great product - we bought two so the kids could walk along the top of one and use the 2nd to hang from...." Read more

    "My 2 kids love to play on this. It's very sturdy and has held up with many hours of playtime...." Read more

    "...Very high quality product. Every stitch on the line and each metal joint and piece is very durable, built to last thousands of takedowns and..." Read more

    "...This product has a great find and was very easy to set up...." Read more

    6 customers mention "Visual appeal"6 positive0 negative

    Customers enjoy the product's visual appeal. They find it a nice addition to their backyards and highlight of raffle tables. The product encourages kids to get outside and hang it over their pool, making it a great summer present.

    "...It was the highlight of the raffle table. Nothing says get outside like a cool ninja line." Read more

    "...For the price I expected a little more. But overall a nice addition to the backyard" Read more

    "Awesome addition to the backyard. I put a disconnect underneath it so my 3 & 5 yr old have a few more options for play but they spend hours on it!" Read more

    "Fantastic, “get your kids outside” present. Quality is great!" Read more

    4 customers mention "Ease of assembly"4 positive0 negative

    Customers find the cargo strap easy to assemble and of good quality. They also mention it's challenging and you can adjust the obstacles on the strap.

    "...Not only is it really challenging, but you can adjust the obstacles on the slack-line for beginners or intermediates...." Read more

    "...This product has a great find and was very easy to set up...." Read more

    "...They LOVE it! It was very easy to assemble and is of good quality! We bought extra accessories to be able to change it, unlike a swing set!" Read more

    "It is easy to install, but it sags a little depending on the kid's size...." Read more

    3 customers mention "Energy level"3 positive0 negative

    Customers enjoy the cargo straps for their energy level. They find them a great way for kids to burn energy, good for active kids, and fun for hours of play. The straps also provide a workout and get kids off the couch.

    "...that will make your kids love getting off the couch and playing for hours outside...." Read more

    "Kids like the line. It's nice that objects are easy to swap position, but works best with slack in line...." Read more

    "Great way for kids to burn energy!..." Read more

    Hours of fun and a great workout as well!
    5 out of 5 stars
    Hours of fun and a great workout as well!
    This product was recommended to us by bradlywest.com and what a great recommendation it was/is. There are only a few things that can compete with Fortnite (i.e. your children sitting on the couch for hours). This "Ninja Warrior" Intro kit is one of those things that will make your kids love getting off the couch and playing for hours outside. Not only is it really challenging, but you can adjust the obstacles on the slack-line for beginners or intermediates. Take off the obstacles and it becomes a really sturdy slack-line for balancing.Very high quality product. Every stitch on the line and each metal joint and piece is very durable, built to last thousands of takedowns and reinstalls (which can be done in 10 minutes or less!). Very very satisfied with the purchase.
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    Top reviews from the United States

    • David Houghton
      5.0 out of 5 stars Great kit - recommended
      Reviewed in the United States on March 7, 2025
      Verified Purchase
      Great product - we bought two so the kids could walk along the top of one and use the 2nd to hang from. Recommend stringing over 24 ft as the spacing was just right for the obstacles and hanging ropes etc. product seems well made, would purchase again
      Helpful
       Report
    • Emily Jones
      5.0 out of 5 stars Great use and great visual in nice yards
      Reviewed in the United States on February 9, 2020
      Verified Purchase
      My kids love this! 8 year old boy and 7 year old girl. There are 2 extra pieces shown here that do NOT come w the line. I bought the rope climber and spinner shown to the left after we put up the ninja line and needed something that my daughter could reach better. I love that this blends in so great to a yard with out standing out like a sore thumb like large jungle gyms. And costs so much less!!! Advice. Layout all piece where you think you want them and attach BEFORE you tighten line. Also a good idea to get extra clips and put them on all loops so you can easily move items around after tightened.
      Customer image
      Emily Jones
      5.0 out of 5 stars
      Great use and great visual in nice yards

      Reviewed in the United States on February 9, 2020
      My kids love this! 8 year old boy and 7 year old girl. There are 2 extra pieces shown here that do NOT come w the line. I bought the rope climber and spinner shown to the left after we put up the ninja line and needed something that my daughter could reach better. I love that this blends in so great to a yard with out standing out like a sore thumb like large jungle gyms. And costs so much less!!! Advice. Layout all piece where you think you want them and attach BEFORE you tighten line. Also a good idea to get extra clips and put them on all loops so you can easily move items around after tightened.
      Images in this review
      Customer image
      23 people found this helpful
      Helpful
       Report
    • emilia harris
      4.0 out of 5 stars KIds love
      Reviewed in the United States on January 2, 2021
      Verified Purchase
      My 2 kids love to play on this. It's very sturdy and has held up with many hours of playtime. With 2 kids who love the show and can't go to the ninja gym right now, this is perfect. The only problem is that the rope knots hurt their hands. We ended up not using the rope knots and the kids are good. Since my daughter is a few years older than my son (and therefore taller) we hang it up higher and my son uses the slide to reach the ninja line. In October it snowed overnight when we had the line out but it was still looking brand new after the storm. Would recommend to a friend
      3 people found this helpful
      Helpful
       Report
    • Amazon Customer
      5.0 out of 5 stars Hours of fun and a great workout as well!
      Reviewed in the United States on December 6, 2018
      Verified Purchase
      This product was recommended to us by bradlywest.com and what a great recommendation it was/is. There are only a few things that can compete with Fortnite (i.e. your children sitting on the couch for hours). This "Ninja Warrior" Intro kit is one of those things that will make your kids love getting off the couch and playing for hours outside. Not only is it really challenging, but you can adjust the obstacles on the slack-line for beginners or intermediates. Take off the obstacles and it becomes a really sturdy slack-line for balancing.

      Very high quality product. Every stitch on the line and each metal joint and piece is very durable, built to last thousands of takedowns and reinstalls (which can be done in 10 minutes or less!). Very very satisfied with the purchase.
      Customer image
      Amazon Customer
      5.0 out of 5 stars
      Hours of fun and a great workout as well!

      Reviewed in the United States on December 6, 2018
      This product was recommended to us by bradlywest.com and what a great recommendation it was/is. There are only a few things that can compete with Fortnite (i.e. your children sitting on the couch for hours). This "Ninja Warrior" Intro kit is one of those things that will make your kids love getting off the couch and playing for hours outside. Not only is it really challenging, but you can adjust the obstacles on the slack-line for beginners or intermediates. Take off the obstacles and it becomes a really sturdy slack-line for balancing.

      Very high quality product. Every stitch on the line and each metal joint and piece is very durable, built to last thousands of takedowns and reinstalls (which can be done in 10 minutes or less!). Very very satisfied with the purchase.
      Images in this review
      Customer imageCustomer imageCustomer imageCustomer image
      26 people found this helpful
      Helpful
       Report
    • Drew
      5.0 out of 5 stars Good for active kids!
      Reviewed in the United States on May 7, 2020
      Verified Purchase
      Kids like the line. It's nice that objects are easy to swap position, but works best with slack in line. Seems durable and has entertained kids (10,9) for a few hours. Durability has yet to be an issue, though I would recommend taking it down when not in use. As with all things left out, it will become fragile with sun and dirt exposure.
      2 people found this helpful
      Helpful
       Report
    • Victoria Despres
      5.0 out of 5 stars Backyard ninja training!!
      Reviewed in the United States on August 24, 2019
      Verified Purchase
      We bought this to donate as a raffle item for a girl power fundraiser. It was the highlight of the raffle table. Nothing says get outside like a cool ninja line.
      6 people found this helpful
      Helpful
       Report
    • Laura
      5.0 out of 5 stars Love this product!
      Reviewed in the United States on December 10, 2018
      Verified Purchase
      Our daughter is in love with American Ninja Warrior and loves “training” in the backyard. This product has a great find and was very easy to set up. I do recommend hanging this product a little high because you need a few extra feet to hang. It’s a great quality product and I’m very happy to see my daughter playing outside again.
      4 people found this helpful
      Helpful
       Report
    • Jamie
      5.0 out of 5 stars Great way for kids to burn energy!
      Reviewed in the United States on June 27, 2020
      Verified Purchase
      We purchased this ninjaline for our daughters, 3 and 6, to make our backyard more fun during quarantining. They LOVE it! It was very easy to assemble and is of good quality! We bought extra accessories to be able to change it, unlike a swing set!
      Customer image
      Jamie
      5.0 out of 5 stars
      Great way for kids to burn energy!

      Reviewed in the United States on June 27, 2020
      We purchased this ninjaline for our daughters, 3 and 6, to make our backyard more fun during quarantining. They LOVE it! It was very easy to assemble and is of good quality! We bought extra accessories to be able to change it, unlike a swing set!
      Images in this review
      Customer image
      One person found this helpful
      Helpful
       Report

    Top reviews from other countries

    Translate all reviews to English
    • Florian Meyerhöfer
      5.0 out of 5 stars Variantenreich
      Reviewed in Germany on January 30, 2025
      Verified Purchase
      Macht viel Spaß, gutes Set
      Report
    • Jeje
      3.0 out of 5 stars Pas facile à tendre
      Reviewed in France on October 25, 2024
      Verified Purchase
      Dans l idée le produit est intéressant pour le reste cela reste compliqué de tendre la slackline...
      Report
    • Cliente Amazon
      1.0 out of 5 stars Mi hijo de 18kg empezó el circuito y cayó al romperse la pieza adjunta.
      Reviewed in Spain on January 7, 2023
      Verified Purchase
      Mi hijo de 18kg empezó el circuito y cayó al romperse la pieza adjunta. No consigo que me manden la pieza, sólo se puede devolver el producto pagando el envío yo.
      Customer image
      Cliente Amazon
      1.0 out of 5 stars
      Mi hijo de 18kg empezó el circuito y cayó al romperse la pieza adjunta.

      Reviewed in Spain on January 7, 2023
      Mi hijo de 18kg empezó el circuito y cayó al romperse la pieza adjunta. No consigo que me manden la pieza, sólo se puede devolver el producto pagando el envío yo.
      Images in this review
      Customer image
      Report
    • Chiara
      5.0 out of 5 stars Ottimo regalo
      Reviewed in Italy on July 25, 2022
      Verified Purchase
      Una vera piccola palestra all’aperto per i bambini.molto apprezzato!
      Report
    • Mark J. Boland
      5.0 out of 5 stars Good fun sturdy quality product
      Reviewed in Canada on May 5, 2020
      Verified Purchase
      My kids 7 and 9 and I love messing around on this, use it for my chin-ups, kids swing and hammock as well as the attachments that come with it. Good clean family fun. Solid quality components that give you the confidence to play hard and no worry it will break.
      Report