BZ62 Professional Aluminum Bicycle Mount for GoPro Hero 1/2/3 4-color --choose one color Features BZ62 Professional Aluminum Bicycle Mount for GoPro Hero 1/2/3 BlackEspecially designed for GoPro Hero 1/2/3Aluminum structure with CNC machining technologyMore stable with 6061 aluminumEasy to install and removeSuitable for bicycle with pipe diameter from 30mm to 31.8mmColor: Black, Red, Blue, GreenMaterial: 6061 AluminumMax Load: 3 kgInner diameter: 30mm~31.8mmWeight: 45gSize: 10.3 x 6 x 1.9cm(L x W x T)Packing Include:1 x Bicycle Mount Please leave message to ell which color you want or we will send the random .thanks