30mm tube. Used but in mint condition. Box, and all screws (including spare set) and instructions.
To fit Remington action. I think they are low/medium. They were on a 50mm Swarovski on a varmint barrel which gave as minimal clearance as was possible. Should fit on a 56mm scope if standard or lightweight barrel'd rifle.
What I don't have, is the hex key that came with them because I gave a loan of it to a mate who is now frantically trying to find it! So, they may have to be sold without it.