ITEM NAME:Aluminum Thumb Knob Stainless Bolt Nut Screw Set for Gopro Hero 3+ 3 2 1 W1T8 Aluminum Thumb Knob Stainless Bolt Nut Screw Set for Gopro Hero 3+ 3 2 1 W1T8 Aluminum thumb knob with stainless bolt nut screw for Gopro mount adapter. Made of high quality aluminum, durable for long term use. Easy to install and use. Accessories for fixing Gopro to a standard tripod, suction cup. Compatibility: For GoPro HD Hero1 / 2 / 3 / 3+ Material: Aluminum + stainless steel Color: Black Product dimensions: Approx. 6.0 * 1.7cm / 2.3 * 0.7in (long); 4.6 * 1.7cm / 1.8 * 0.7in (short) Weight: Approx. 38g / 1.3oz Package included: 1 x Long Screw 2 x Short Screws 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..Aluminum thumb knob with stainless bolt nut screw for Gopro mount adapter. Accessories for fixing Gopro to a standard tripod, suction cup. Compatibility: For GoPro HD Hero1 / 2 / 3 / 3+. 1 x Long Screw.