Features: 1. Fine Workmanship: The aluminum alloy part of the product adopts CNC integrated anodized process. The ball head is made of premium material. It uses fine workmanship, not easy to slip. 2. Hard and Firm: Comfortable texture and smooth rotation give you the best shooting experience. Very suitable for photography enthusiasts. 3. 360 Degrees Rotation: You can cleverly use the knob to tilt your head in any direction and rotate 360 degrees for panoramic photography. 4. Easy to Install: The ball head is 1 inch in size, easy to install, stable and non-slippery. 5. Compatible for: Suitable for most bicycles, motorcycles, scooters, electric vehicles and very suitable for outdoor cycling sports recording. 6. Descriptions: Mounting Handlebar Base, made of premium materials, has comfortable texture and smooth rotation. Very suitable for photography enthusiasts. Specification: Material: Plastic,Aluminum alloy and rubber Arm length: 6cm,9cm,15cm For Choice Ball holder diameter 1 inch, on both ends 25mm Ball Head Supports 1.4-4cm Range Clipable Range: Maximum Fixing Range: 4cm Minimum Fixing Range: 1.4cm Notice: It was not include cameras, smartphones, motorcycles, and bicycles.