Tool-free installation and removal designed to quickly clamp to round, square, and odd-shaped rails and bars ranging from 0.5" to 1.75" in outer diameter The 1'' ball mount 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. Aluminum alloy tough-claw with built-in TPU provide stable gripping and protection of mounting surface This 1 inch ball handlebar clamp mount compatible with RAM Mounts & BRCOVAN any B size 1'' ball double socket arm. Work for other devices with 1 inch swivel ball mounting pattern Perfectly suited for mounting on the yoke of an aircraft, handlebars of bikes/bicycles/motorcycles/strollers/mountain bikes/dirt bikes/trek bikes/road bikes/golf carts/electric scooters/ATV, or even on kayak rails and roll bars. Ideal mounting base for phones, tablets, action cameras, rod holders, and much more The aluminum alloy handlebar clamp mount base with 1'' TPU ball for rails 0.5'' to 1.75'' in diameter, compatible 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 over-molded ball head, non-slip and wear-resistant. Aluminum alloy tough-claw with built-in TPU provide stable gripping and protection of mounting surface. (Pack of two)