Size:20*50*72mmColour:blackMaterial:Aluminum alloyPackage Contents:1 x Bicycle holder+1 x WrenchCondition: Brand New and High QualityHigh quality: CNC Aluminum alloy material bike mount,Waterproof Rustproof and anti-corrosion,hard and firm,Well be great during the winter months when plastic mounts snap off after the temps drop below zero.Wide range: adapter is perfect for bicycling,moutain biking,motocross,water sports and other outdoor action activities.Perfectly compatible with all GoPro and GoPro-like action cameras.360 degree rotation: standard rotatable gopro adapter, allows 360 degree rotation for your shooting from different anglesEasily installing: It can be attached to any round or semi-round tube from 22 - 34mm in diameter such as seatpost, handlebars.Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.