Been looking for a new ring for the past few weeks to replace an old one that I bought a while back. This one caught my attention due to it including several other rings of different sizes. For me, this fit very well, it's very stretchy and isn't uncomfortable.
Since it has multiple rings, you can adjust the amount of 'tightness' that you want. Another thing I like is how discrete the rings are. It doesn't have any logo on it and is solid black. Any random person can just pick it up and they won't know what it is or what it's for. Overall, I'm happy with this product.