Antkeet For Gopro mount adapter Motorcycle Bike Handlebar Mount Holder for Camera Camcorder Gopro Accessories Compatibility: For GoPro Hero 1 2 3 3+4or cameras with a 1/4" threaded screw mount Fit: For bar with diameters of between 1.5cm and 4cm Material: PC + Stainless steel Length: Approx. 11cm/ 4.3in