Smatree Aluminum ThumbScrew Set + Wrench for Gopro Session, Hero 7,6, 5, 4, 3+, 2, 1 Aluminum Thumbscrew, High quality stainless Steel Acorn Nut Help you to easily tighten and loosen screws between mount and camera, and a O-ring helps to prevent camera from abrasion yet not essential for every buyer Aluminium alloy Thumb Screw Wrench helps tighten and loosen thumb screws used with both Smatree and cameras & equipments Color: Blue. Long Thumbscrew is about 2.2 inches. Short Thumbscrew is about 1.7 inches,make your camera look cool and awesome Package: 1 x Long Thumbscrew with Steel Acorn Nut, 2x Short Thumbscrew with Steel Acorn Nut,1x Smatree Wrench