This Baseus holder is made from durable Aviation Quality Aluminum that has not been oxidizing for 10 years. The rotary wheel on the side is to clamp the phone properly. On the inside of the clamp is High Polymer Rubber for Shock Absorption, Stabilization and against scratches of the phone. The motorcycle / scooter / bicycle holder can be rotated 360 degrees.
Easy mounting on the handlebar by tightening the screw. Or to mount at the mirror. Supported tube diameter for bicycle, scooter or motorcycle: 28-34mm
Width of telephone holder 55mm-85mm max.
See photos for more clarity.