Style up your GoPro camera with the aluminum thumb knobs with stainless bolt nut screws! Specifications: Compatibility: For GoPro HD Hero  2 / 3 / 3 / 4 Material: Aluminum stainless steel Color: Blue Product dimensions: Approx. 6.0 * 1.7cm / 2.3 * 0.7in (long);

Style up your GoPro camera with the aluminum thumb knobs with stainless bolt nut screws! Specifications: Compatibility: For GoPro HD Hero  2 / 3 / 3 / 4 Material: Aluminum stainless steel Color: Blue 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 The head of the screw is made from high quality aluminum, while the shaft and acorn nut are made from rust-free stainless steel. The entire unit is very strong and durable. Package List: 1 * Long Screw 2 * Short Screws