I had read other reviews prior to purchasing, and was impressed with reports of material quality, but there are a number of very low reviews about ACCURACY. So based on now purchasing them myself (at full price, BTW, not free/reduced "for an honest review") I feel that I can honestly say that both "camps" have a point. BUT, if you use these the way I think that one should, based on my quick experiments (which makes them harder to read!) they are reasonably accurate. I will probably only use them, for this reason, for liquids.They are very nice looking, well made materially, anyway (I liked the fact that the handle and body are one piece - no welds to break, no gaps to trap food/liquids in between a welded handle and the body of the cup). As one reviewer was aghast at, yes each single cup was individually wrapped in thin plastic (prevents scratching, but yes, if I throw them directly into the ocean I could harm wildlife, so I'll securely wrap the trash in a bag, which will go to the landfill; no animals were harmed in the making of this picture. But that reviewer is correct, a lot of waste going on there). And yes, I can confirm both by reading the box and the sticker on the 1 cup measure (see photo) that the set IS MADE IN CHINA, for those still wondering.Now to the "less than positive." I do not believe that you can use the "brim" of these cups to provide an accurate measurement. The larger cups have impressed (on the side) SMALLER measurements, which can be seen from the inside (see photos, please). I found (using an Arccuisine borosilicate 1 cup measure; presuming that's accurate, of course) that the smaller cups provide reasonably similar readings if you fill them to the brim and measure against the "standard." This is using WATER, and that leads to a problem, as I'll explain below. But I think that's a fair test, because many of the liquids that we're measuring are water or predominantly water. However by the 2/3 cup measure, I started to see substantial differences between this product and my "standard." The 2/3, 3/4 cup and the 1 cup (filled to the brim) were very different from the glass cup's calibration. Part of the problem here is the behavior of water itself between an Arccuisine or Pyrex measuring cup and these cups, if filled to the brim. When the surface of the water is entirely contained within the vessel (the glass cup), the meniscus will be concave ("sucked down"). But filling a cup to the BRIM to measure, as with these, the actual water surface will be conVEX ("bulged upward") - look it up! That is a very real volume difference. In a science experiment, you're using a measuring container that you're not filling to the brim, and at least with water based fluids you're measuring at the BOTTOM of the concave meniscus. Now there is a "bright side." If you look at the pictures with my review, I've presented the outside and inside of the 1 cup measure. IF you use the line (or the MIDDLE of the "1 cup," which DOESN'T have a line), NOW you're pretty close on. So this leads to my 3 star "easy to read" rating. I hope this helps others. Using the SIDE markings these DO seem reasonably "on" with another kitchen standard. But for the 2/3 cup and up I do NOT feel that you can "fill it to the brim" (which I suspect many people will consider doing) and get an accurate measurement. Hope this helps.