Designed for attaching your GoPro camera to bike handlebars of 19MM~35MM in diameter. Built-in soft pad, protect your bike handlebar from scratching. Easy to install and remove. Compatible with Gopro Hero 1/ Hero 2/ Hero 3. Specifications: Color: Black Material: PC, stainless steel screw Compatible: For GoPro HERO 1/2/3 Weight: Approx. 50g / 1.76oz included: 1 * Bicycle Handlebar Mount