Description: New clamp design for ease installation. Easily attach it to the handlebar to record your riding experience in a new way. Reducing windage, improve visual field, ensure safety. Specification: Material: Aluminum Alloy CNC + Engineering Plastic Adapter Color: Red Extension Length: 70mm / 2.8inch Suitable for 31.8 / 25.4mm(used conversion) handlebar Package Includes: 1 Set Bicycle Computer Mount Note: If your handebar diameter is 25.4mm, you can use conversion to adjust