1. Bicycle Mount Holder for GoPro Hero Cameras - Designed for GoPro and other action cameras to mount on the bike or motorcycle handlebar, tube, roll, bars or pipes with a diameter of around 10mm to 36mm (10mm - 16mm if lined with a rubber pad, and 26mm - 36mm without the rubber pad, please confirm the size before purchase) 2. 360° Rotatable Camera Clamp Mount - Multi - function mount bracket designed with double ballhead for horizontal 360° rotation and vertical 180° rotation, allows you to adjust any angle and tighten by locking knob 3. Standard 1/4' Thread Ball Head Adapter - Mount clamp bracket comes with a universal 1/4' screw thread and adapter for GoPro, is compatible with most cameras or accessories, you can attach anything with a female end with 1/4' threads 4. Stable & Secure - Solid and durable camera mount clamp, the rubber pad inside the clamp jaws keeps it in place, the design of the jaws in terms of thickness, width and ability to open to a very wide position, along with the rubber makes it stay right where you tighten it