? Suitable for other 1" ball device mounts, such as bike phone mounts, motorcycle phone holders, action camera mounts, navigation mounts, marine electronic mounts, etc. ? Compatible with RAM Mounts & BRCOVAN any B size 1'' ball components, including mounting bases and device holders. ? Medium Arm: with an overall length of 3.54". ? The B size 1'' ball double socket arm made of 6061-T6 aluminum alloy material with CNC machining and iii grade hard anodized surface for durability and reliability in the most demanding environments.