ROKK MINI Phone Mount kit with Cable Tie BaseThe Cable Tie kit enables you to mount your phone onto over sized rails and other tubes and sections, minimum diameter 60mm (2. 3") and maximum diameter 100mm (3. 9"). The 360 degree aluminium body features a metal on metal locking system that multiplies your clamping efforts to achieve 100% locking force. Your phone will never move until you want it to. Phone Clamp Top Plate Secure mount for smartphones, handheld GPS and other small devices ratchet