Ronstan 28mm or 30mm Single Cheek Block RF900 or RF30151(A)
The original number of this block is RF900 and the type that I am likely to send, however I do also have a couple of RF30151 versions and one RF30151A version.
ISO Application - Jib Sheet Block
Please Note - These are no longer made so the ones that I have in stock are 'old stock' versions that I have managed to buy over time. They are new and unused.