PC material for the mount, makes it lightweight and strongly fixed with your camera. The direction and the angle can be adjusted to your needs, perfect camera angle for POV filming. Ideal fit for Shoei RF series (RF1100, RF1200, etc.) and Bell Qualifier helmets and other curved chin helmets (full face helmet) Compatible with GoPro Hero 9 8 7 6 5 4 3+ 3 SJCAM Yi 4K Eken other action cameras. Note: This helmet strap mount need to be used with a J Hook when installs it with a camera. Easy install or remove from the helmet. Package Include : 1 x Action Pro Chin Mount, 1 x Action Pro J Hook.