I am looking for a ring that is 21/2 or one that is 23/4 that go's aroud the bass of me cock an balls or a new cage that will fit me
That is a very large ring size, you sure that is your size? The biggest I've heard anyone use for chastity device was 2.5 and that was loose on purpose cuz he had a piercing to keep it secure.
That is a very big ring size if you are talking inches. The looser the ring the greater chance of chaffing and coming out of it at night. Plus you did not tell us what chastity device you have. You cannot just use a ring from one type of device on another. After wasting my money on 4 off the shelf devices, I got a custom Jailbird from MM and been wearing it 24/7 for the last 3 years. That was the only way for me to get a perfect and comfortable fit.