GoPro Seatpost and Handlebar Mount Kit Attach your GoPro camera to handlebars, seatposts, ski poles and more. Fits 0.75 to 1.4 (1.9cm 3.5cm) diameter tubes. You can also clamp to chainstays, small roll bars, bolt-heads, windsurfing and kitesurfing control bars, or even use to create a handheld boom 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. Included: Handlebar / Seatpost / Pole Mount 3-Way Pivot Arm 2 Rubberized Adapters Compatible with all GoPro Hero cameras.