Review on Pieces Plastic Measuring Jewelry Measurement by Carla Anderson

They are really easy to use but I have no way of verifying accuracy. I wore a size 5 and felt it was correct for the item, but when I received my actual ring, a size 5, it was at least half a size too big, so I don't know how that happened - maybe. It was because my knuckles are a bit bigger than my fingers so I'm thinking what could have happened if I had a slightly larger ring put the ring on the knuckle but when I did that it got too big but I did don't think it was the item's fault - it's just a weird situation to deal with.