1. Gear type non-slip washer locking to keep the equipment stable, high quality and clear images easily captured 2. Aluminium alloy production, and corrosion-resistant, rubber gasket, do not hurt the car 3. Double ball design, 360° rapid adjustment of the angle 4. Wide range of clamping, maximum open about 40mm, minimum 25mm, improve the adaptability of more models 5. 1/4inch bolt is widely compatible with sports cameras (for POCKET series, for ACTION series, for INSTAR360 series), remote controls (RC/), mobile phone clips and other use. It is recommended that you do not operate the remote control during . Please make sure the vehicle is stopped and then operate it to avoid accidents when the bike is out of control. It is recommended to turn on the anti-shake function when connecting a device such as a sports camera to stability when . Devices without screw holes are recommended to use an adapter such as an adapter. This bike carrier may require an appropriate adapter accessory to