Includes Handlebar Mount and Chest Strap. The handlebar mount must be connected directly to the camera. It cannot be used with other extensions or selfie sticks. GO 3 must be assembled with the Quick Release Mount. Not compatible with One RS 1” 360 Edition Third-person bike shots.Robust and high quality Handlebar Mount with a ball joint to easily adjust the angle. Comfortable and secure.Soft padding and adjustable straps make the Chest Strap perfect for first-person views. In the Box 1x Handlebar Mount 1x Chest Strap 4x Anti-slip Ring 1x Mount Extension 1× 1/4” to 2-prong Adapter 1× 3-prong to 1/4” Adapter 4x Thumb ScrewNotes1. The handlebar mount with the rubber insert fits 0.8–1.6cm (0.32–0.63in) diameter tubes. The handlebar mount without the rubber insert fits 2.2–3.5cm (0.87–1.38in) diameter tubes. Do not use the handlebar mount with cameras weighing over 300g (10.58oz).2. The handlebar mount should only be attached to the bike’s handlebar or seat post. Please do not use it with other extensions or selfie sticks.3. The recommended maximum speed when using the handlebar mount and chest strap is 60km/h (37mph) on even surfaces. Avoid using products on uneven or bumpy surfaces.4. Do not use the chest strap with cameras weighing over 250g (8.8oz).