Brand SMJ Model G-84 Quantity 1 Color Grey Material 6061 Aluminum alloy Compatible Camera Models Gopro Hero 2 / 3 / 3+ Functions It will help you to secure your GoPro camera a lot tighter than trying to tighten it by hand. Works especially well when trying to install the camera with multiple extensions and more force needed tightening the knobs. Works with all standard GoPro mounting knobs and Hero Gear knobs. Other Features It will help you to secure your GoPro camera a lot tighter than trying to tighten it by hand. Works especially well when trying to install the camera with multiple extensions and more force needed tightening the knobs. Works with all standard GoPro mounting knobs and Hero Gear knobs. Packing List 1 x Wrench