It said that the ring sizers measure fingers sizes 1-15 ...
592909
It said that the ring sizers measure fingers sizes 1-15  but it only measures ring sizes 1-13. Which was upsetting to me because I wanted to order a bigger ring size for my husband but the sizes are to small and I can't go above  size 13.
4070177
He loved the ring, but I thought it was a size 8. It was only a size six so he can only wear it on his pinky.
2002287
They seemed to be of good quality, but I think the sizing was off.  The 8 was larger than my size 8 wedding ring, and they don't have any smaller sizes.  Returns also aren't free so be aware of that before you buy.  We ended up returning them and it was around $7.
731783
It runs small. I ordered size 9 for my middle finger but can only wear it on my ring finger.
288950
The ring was fine. It's on the big side. So I wish your program had a way to gauge the size. I guess it's better to be too big than too smal.
1710534
All rings same size so they only fit one, maybe 2 fingers. WTF? Also, they fall off. The X rings only fit over 1st knuckle and go flying off the instant my fingers were straightened. Can't wear. Can only wear the spiral ones and the bands.
4086066
I bought this ring to wear on my pointer finger. The details of the silver were pretty and so was the amber piece, but the ring looked way too small and insignificant on my finger. I am a small person with short fingers and wasn't looking for a big imposing ring, but I was hoping for something with more presence than this one. It measured about 1/2 inch in length (top to bottom). I sent it back to the vendor.
3194391
The ring is too small for me to wear around my finger. I got the same size I did last time (I lost my old one that I had had for years) and it doesn't fit.
1121937
Product is as described. For sizing, I measured the inner diameter of my wedding band (16.64 mm) which is between size 6 and 6.5 according to the seller's chart. I chose size 6, which is 16.4 mm diameter, because it'd be annoying if this kind of ring turned around my finger. The size 6 turned out to be just a bit too loose to my liking, so I wear it on my other hand's ring finger instead. Just hoping that the green stone doesn't fall apart any time soon.
2713116
I had one glove fit correctly and other felt like it was one size smaller. After wearing it for a day I ripped the tight glove while putting my hand in. Now I have to flip it inside out to fix it and hand sew it. I think the glove over has to be slightly larger for an adult hand.
3055499
Fingers ended up being too short. The sad thing is that there is no easy way to determine finger length online since all they give are sizes like L, XXL, etc. This makes buying gloves very difficult. I can't fault the gloves, but I am annoyed by the fact there was no way to know this until buying.
873310
Apparently when they list thickness as 1/8" (.125").. it really means .139".  How did the O-Ring companies get away with such a ridiculous way to measure an O-Ring.  So naturally they didn't fit.
141083
For our ring sizes they do not help.  The material is too thick which reduces the size too much.. Next effort will be a jewelery repair shop.
159148
I have three different size ring bands and there was an adjuster that fit each one.  If you put them on your ring before putting a ring on it won't fit over your knuckle. However, they aren't the easiest things to put on the rings once they are on your hands.  I was hoping for an awesome product but I wouldn't buy them again.
3168685
Its a pretty nice ring, im 15 and i have pretty small hands and im 5'7 145 pounds id recommend a size 8.5 or 9 i got 8 and its a bit small
3702967
The ring is too small for my desired finger, but I'll wear it on a different finger so it works out.
977927
They were about what I expected except they are huge on me. I can barely keep them on as regular rings so there's NO chance they will be the mid rings I was hoping for. If I had to guess, the smallest one is maybe a 6 or 7...my ring finger is a 5 1/2 so if you have small fingers and want the mid-ring style, this is not the product for you.