Best Beginner Nipple Clamps?

When I first learned that nipple clamps are a thing, I started adding wooden clothespins to my masterbation sessions. I find that I really enjoy them and I have an easier time getting myself off with them. I’ve been using them for a few years now, but I find that the wood chafes and damages my skin, so I’m looking into buying myself a set of nipple clamps. I’d really like for them to be adjustable, and while it’s not a requirement, it would be nice if they look pretty too. And since I’ve only used clothespins before, it would be nice if the clamps are more suitable for beginners. Does anyone have any suggestions?