Features 1、Application: U bolt handlebar mount is suitable 12.7‑36mm rails, can be mounted on bicycles, motorcycles, mountain bikes, electric scooters and other tubular objects of suitable size. 2、Matching Use: U bolt ball head mount base can well work with other motorcycle mount accessories, to fix cell phone and sat nav device while driving, install action camera to record travel. 3、Ball Socket Technology: U bolt ball head mount adapter makes use of excellent ball socket technology to provide nearly unlimited adjustability, bringing a better riding experience. 4、Superior Materials: Main body is made of aluminum alloy for maximum durability and reliability in harsh environments. Ball head wrapped with rubber for great anti slip performance. 5、High Performance: Heavy duty motorcycle U bolt base comes with 1in diameter ball head, and supplied with necessary accessories for easier and convenient installation. Specification Item Type: U Bolt Handlebar Mount Material: Aluminum alloy, rubber Ball Size: Approx. 1in/25.4mm Installation Range: Approx. 12.7-36mm/0.5-1.4in Application: Bicycles, motorcycles, mountain bikes, electric scooters and other tubular objects of suitable size. Package List 2 x U Shaped Accessories 2 x Nut 2 x Gasket 1 x Mat 1 x Hook and Loop Fastener 1 x Ball Head 2 x Anti Skid Rubber