Goliton Motorcycle Bike Sport Handlebar Seatpost Pole Mount with 3 Way Pivot Arm for Gopro Hero4/5/3+/3/2/1/4 Session/5 Session XiaoYI Xiaomi - Max for 4cm Diameter - Black Attach your GoPro camera to handlebars, seatposts, ski poles and more. max for 4cm diameter tubes. You can also clamp to chain stay, small roll bars, bolt-heads, and kitesurfing control bars, or even use to create a handheld boom C any pole that is in the size range above. Comes with pivoting orientation arms allowing for 3-way adjustability, ensuring you can get the angle you want. Compatible with : Gopro Hero4/3+/3/2/1