I Paimy Universal Motorcycle MTB Bicycle Handlebar Mount Holder for Ipod Cell Phone GPS Special stretch clip design for safety lock, strengthen locking function, keeps your device more secure Fit for bicycle/motorcycle handlebar 15-30mm Screw fixed, easy to install,prevent your device from dropping brand new and high quality Compatible for device up to 6.3 inch screens, such as mobile phone, MP4/MP5, GPS, PDA etc.