DeLorme InReach Powered inVehicle RAM Mount The high-strength composite 3.5" locking rubber suction cup base is designed to have an extra strong hold on any smooth non-porous surface, but for best results, mount on a glass surface For use in cars, trucks, airplanes, boats and RVs Rail mount with locking tooth system and a standard RAM diamond plate end High strength composite cradle - designed specifically for the in Reach device Installation is quick and easy