This Clamp mount with 1/4" screw, made of plastics and rubber. applicable for some cameras,lights, video lights, monitors,gopro hero etc,install on cross bars,tubes,handlebars,tripods etc Clamping Diameter range:16-40mm(0.6-1.5in),kindly try to measure the Diameter of tube before you purchase it

Bike Handlebar Seatpost Holder with Three-way Adjustable Pivot Arm - No dead zone as the Three-way Adjustable Pivot Arm can be rotated around any direction, you can located your GoPro camera any position on your bike and motorcycle, shoot with fantastic angle! The foam gasket attached Handlebar Holder can prevent your camera from sliding and heavily vibrating effectively. Head Strap + Chest Strap - Get the first person point of view videos and photos with our skidproof, elastic, length adjustable and comfortable wearing Head Strap, and our Chest Strap with the same feature enable you breath well during heavy activities and look around the world from the angle of your beating heart. 360 Degree Rotatable Wrist Arm Strap makes it possible for the GoPro camera's location from your wrist to arm. Floating Handle Grip + Floating Block - View the underwater scenery leisurely and never worry about your GoPro camera lost with light yellow and red color. Or fix your GoPro on surfboard and enjoy your surfing, record every amazing surge you experienced. The adjustable blue band ensures the safety and your wearing comfortability.