High Quality Aluminum Alloy Thumbscrew for Gopro. Our aluminum alloy screw made by high-strength and high-precision CNC processing technology, so you don't have to worry about rust or corrosion. Each screw has a small rubber O-ring at the base that helps to keep the pressure on the screw, preventing abrasion, yet it is not essential for everyone so put them away when you don't need it. Long Thumbscrew for Gopro compatible with GoPro Hero 11 10 9 8 7 6 5 4 3+, MAX, Fusion, Insta360 ONE X3 X2 X RS R GO 2 and DJI Osmo Action 2 3. Package: 2 x Long Thumbscrew for Gopro, 2 x Short Screws for Gopro.