I rely on my Ten O Lion Paws for wrist support. I never had a flexible wrist, and these help out immensly. Anyone with wrist problems should get these.
Ten-O GH1050 Golden Hands Wrist Supports Reviews
Pros: Good support
Cons: bend quickly
These aren't bad for floor/vault. The inserts bend relatively quickly but they can just be flipped around. These things are pretty much worthless on pommel horse. The thumb strap makes it had to grab the pommels and without using the thumb strap these supports don't provide enough support to do anything.