Description: 23 In 1 Helmet Mount Set Accessory Kit for GoPro. Suitable for the curved surface of bike, motorcycle, ski, baseball and rock climbing helmets, camera housing case, etc. Three-way adjusting helmet arm: achieve more photography angles. Double-sided flat curved adhesive mount: easy to remove with heat (hair dryer). To mount in the front, side, or back of the helmet. Specification: Material: Plastic Size: 130mm/5.1inch Package Includes: 1x Helmet Side Mount Arm 5x Square Adhesive Sticker 5x Circular Adhesive Sticker 2x Square Base Mount 2x Circular Base Mount 2x Screws 1x "J" Hook 1x Wrench 1x Anti-lost Strap