I'm selling a set of three pelvic belts now that I've given birth. I bought the amethyst one in a hurry at the hospital and used it there, but I didn't use it much. However, it was surprisingly easy to use and tightened well! I forgot which one I bought from Inujirushi Honpo, but it's size M to L, and I used it quite a bit, so it feels a bit stretched out. I didn't use the Pigeon pelvic belt because I had a sudden C-section, so it's unused. However, I threw away the box because it was in the way, so I don't have it.