I've seen CoCs been mentioned sometimes on the forum but couldn't find a dedicated thread for them.
CoC grippers have helped me very in improving my handstand and wrist strength. I also don't get pain on my ulnar nerve and wrists anymore (did lots other stuff for these though).
So I can close No. 1.5 now and I want to buy No. 2.
Which No. can you close, thoughts on the grippers, etc?