I am struggling to find anything that fits my small thumb, so I was hoping one of these would fit - they have more sizes than other brands, which is good, and because it s metal you can adapt it, but it s really not high enough and as other reviews mentioned it cuts into the finger (well, it doesn't really cut but it hurts) and it s pretty uncomfortable. too bad because it seems good quality and one out of 3 sizes was my size. I will try using it with a band aid or something underneath.