Making customer happy is far more important than making a sale
As the seller/manufacturer of our chin strap product, we continuously make improvements based on our customers feedback. But like any other anti snoring products on the markets, users would have to put the strap on to see if it works. However, if you find it doesn't, or strap is either too big or too small, or simply not comfortable to wear, feel free to return it and you'll never loss a penny.