Gentle Reminder:Not fit for very thick case users. It accommodates 0.5 inch thickness for a phone with a case.Compatibility:Phone size: 3.5-7inch. Handlebar diameter: up to 1.2inch/ 30mm.Safety:Buckle structure. Lock your phone most securely. The only way to take off your phone is to unscrew the locking nut on the back side. Never worry falling out when riding.Design:Not extra secure band type nor spring grip type! Humanity design by using the buckle structure of four corners.Installation:Easy and quick installation without any tool.Produktbeschreibung Product Introduction: Compatibility: *Phone Size: 3.5-7inch. *Handlebar Diameter: Up to 1.2inch/30mm. Safety: *Buckle structure. Lock your phone most securely. *Pass the shaking test. *The only way to take off your phone is to unscrew the locking nut on the back side. *Never worry falling out when riding. Design: *Mechanical lock on the four corners by using the buckle structure. *Compared to the extra secure band type or spring grip type, this design is much more humanized and reasonable. *Attach your device to the holder conveniently without banding the ugly and annoying strap. Also, avoid pressing the volume key and power key frequently. *The most important thing is that this design is sooooo suitable for Pokemon Go! Try one, why not?! Rotation: It allows you to adjust your phone to any angle and position of your preference with the rotatable design. Installation: Easy and quick installation without any tool.