Features: Chest harness mount + J ;hook mount(included) ; The chest mount is fully adjustable to fit all sizes. Makes it easy to capture immersive video and photo footage from your chest and your head. Perfect for skiing, mountain biking, motorcycle cross, paddle sports, or any activity where you want to get a lower than the helmet View of the action. See more of your arms, knees poles, and skis while skiingOr your arms and handlebars while biking or riding your motorcycle. Recommended as a more immersive way to film than on the helmet. Compatible with all go pro hero ;9 8 7,6,5,4,3+, 3, 2,1 and HD hero original cameras Head strap mount(included) The head strap is compatible with all gopro cameras and great for keeping the footage clear while you shred. The anti-skid design on the back of the strap makes its using more convenient. Elastic nylon strap, polycarbonate buckles, durable and adjustable. Specially designed for all hero 9 8 7,6,5 ,4,3+, hero3, hero2, and hd hero original cameras ; Notes: Not recommended for high-impact sports. Only recommended for non-impact activities Not included waterproof shell,housing case,bracket screw. Package includes: ; 1x Adjustable chest harness 1x Adjustable head strap mount 1x J-hook mount 1x Carry bag