Description: Easy to install and remove. Comes with the standard 1/4" thread for almost all the camera in the market. Mount a camera on your and bicycle and bike,fits handlebar with 17-35MM in diameter (adjustable). 180?swivel head, so you can adjust camcorder,easy adjustment for optimal viewing Compatible with: Cameras with a standard 1/4" tripod mount, fishing lamps, binoculars, many types of cameras, video cameras. All kinds of digital equipment with Thread interface. Specification: Material: Plastic (Screw is metal) Maximum opening diameter: approx 1.59inch/40 mm Package Includes: 1 x Camera Bracket (Camera is not included)