The ball mount consists of a B size 1'' TPU ball connected to a diamond plate. The diamond plate features industry-standard AMPS holes pattern. The center-to-center distance between the two mounting holes is 1.912'' (48.6mm) Main body 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. TPU over-molded ball head, non-slip and wear-resistant This 1 inch ball mount base compatible with RAM Mounts & BRCOVAN any B size 1'' ball double socket arms. Work for other devices with 1 inch swivel ball mounting pattern The aluminum alloy diamond mount base with 1'' TPU ball, Ccompatible with RAM Mounts B size 1 inch ball double socket arm. Main body made of 6061-T6 aluminum alloy for durability and reliability in the most demanding environments. CNC integral molding, solid structure. Anodized surface treatment, smooth surface, durable. TPU overmolded ball head, non-slip and wear-resistant.