Thumbscrew Thumb Screw Set Screw Kit for GoPro Hero,Camera Accessories (3Pcs)Blue 3pcs Thumbscrew Fixing Screw Kit Thumb Screw Set for GoPro Hero 4 3+ 3 2 1 Camera Accessories, GoPro Accessories Thumbscrew Bolt Nut Knob for Tripod Mount Adapter Car Windshield Suction Cup Mount Selfie Stick Monopod and Extension Arm These replacement Thumbscrews are perfect for standard accessories of all GoPro Hero Series, use for fixing your GoPro equipments Made of high quality high-Strength, high rigidity & precision CNC machining Aluminium alloy and Stainless steel, more wearable and durable, provides long life 3 pieces a pack: one long screw 5.7cm/ 2.2inchespecially for GoPro housing and two short screws4.5cm/1.7inch A small rubber ring is good for preventing abrasion, yet it is not essential for everyone so put them away when you don't need it,  Designed to tighten and loosen your camera more stronger and safely, Easy to mount Gopro Hero to standard tripod or suction cup or other Gopro mount, blue color makes your gopro look cooler!