Smatree Aluminum Thumbscrew/Thumb Knob for Gopro Session, Hero 7,6, 5, 4, 3, 3+, 2, 1 (3PCS, 1 Long + 2 Short) -Blue Aluminum Thumbscrew, High quality stainless Steel Acorn Nut Direct replacement for GoPro Cameras, replace the plastic thumbscrew 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 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