Desmond 26cm Camera 10" Bar DRB-26 Double Dovetail Rail Arca RRS Compatible Compare to RRS CB-10. Compatible with all Arca style clamps, including RRS Lever Clamps. 100% Compatible with RRS Bars & Connectors. Features 4 x 1/4" threaded sockets and 1 x 3/8" threaded socket. Length: 26cm (10").