Just starting off with ball stretching. Tried a leather one at first, but it pinched and was uncomfortable. Just received this donut weight in the mail (fast shipping, by the way), and when I took the package out of the mail box, it felt really heavy. I thought "there's no way I'm going to be able to wear this much weight (11.7 ounces)". After putting it on, which was sort of cumbersome the first time, it was very comfortable and just enough weight. The craftmanship is flawless, smooth edges everywhere, with no pinching. Excellent product and well worth the money. I'm going to order my "sophomore ring" today.