CNC Aluminum Assembly Extension 3-way Pivot Mount Arms and Thumb Screw Set for GoPro Hero 1, Hero 2, Hero 3, Hero 3+, Hero 3 Plus, Hero 4 Camera - Black Compatible with GoPro Hero 1, Hero 2, Hero 3, Hero 3+ and Hero 4 cameras Made of durable high-quality CNC aluminum. Simple structure and lightweight It can work with roll bar mount large diameter bracket, handlebar seatpost mount small diameter bracket, chest mount harness, head strap, vented helmet strap etc Three-way pivot adjustability makes aiming easy. Convert horizontal to vertical or change angles Package includes: 3-way pivot mount x 1