The iBOLT ROK 3 works with Garmin GPS Devices and is an alternative mounting solution for all iBOLT car docks. Includes: iBOLT Rok 3 suction mount, Dash Disc, and Tightening ring. HOLDER SOLD SEPARATELY! Compatible with xProDock, xProDock NFC, iProDock 5 , sProDock, sPro2, ProDock, Perfektfit Charging Docks, iPro2 carDock, miniPro, and the magDock 360 ROK 3 is a sticky vibration-free suction mount with a 17mm ball. The iBOLT ROK 3 is an alternative mounting solution for all iBOLT car docks. HOLDER SOLD SEPARATELY!