Features: *1. Made of good quality materials, durable, strong and stable for our use. *2. It can be used as a base for phone stand, sports camera stand or DIY etc. *3. The bolt sleeve expands when you screw in the bolt for firmly anchoring. *4. This part is designed to fit the cylindrical bore wall of the fork stem on many types of vehicles, such as motorcycles, bicycles, scooters, SUVs, trams, etc. *5. Ball head mount only. Description: *1. Material: Rubber + Metal *2. Size: As shown *3. Colour: Black Package Includes: 1 x Ball Mount 1 x Bolt(65mm) 3 x Screw Bolt Accessories Note: Transition: 1cm=10mm=0.39inch Due to manual measurement, please allow 0-1cm error. Make sure you don"'"t mind before bidding. Due to differences between different monitors, pictures may not reflect the actual color of the item. Thanks!