set2: 1 x camera mount adapter + 1 x Quick Release Plate(With screws) Install the safety screw on the side to prevent accidental dropping of the camera. Anti-slip mat makes it more perfecte with the camera, easy to install. All metal materials, integrated design, CNC precision machining, surface anode anti-oxidation treatment. Standard 1/4 screw tripod mount, comes with an Hex key. AS standard interface, compatible with: for Arca Swiss, RRS, Wimberley, Markins, Sunwayfoto, KangRinpoche, Si Rui, Benro etc. Camera mount conversion adapters allow you to mount almost any camera to any GoPro mounting ecosystem accessory. Standard ¼-20 UNC threaded screws to the bottom of most cameras. The locking ring ensures a tight fit to the bottom of the camera to secure the installation in the desired position without causing the camera to loosen. Applicable to all GoPro Hero3, Hero4, Hero5, Hero6, Hero7 installation ecosystems. Made of 100% CNC aluminum, black anodized. Quick Release Plate size:38x25x10mm Easily connect almost any camera to your GoPro mounting system with our ¼-20 camera mount conversion adapter. Made from 100% CNC aluminum alloy and glossy black anodized, this adapter is durable. Specifications: Colour: black Material: aluminum alloy camera mount adapter Size: about 3 x 2.5 x 2.5cm Package Contents: 1 x camera mount adapter 1 x Quick Release Plate(With screws) 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.