RAM Mount RAM Level Cup XL with Torque 3/4" 1" Diameter Rail Base and Short Arm [RAM-B-408-75-1-A-417U]RAM Level Cup XL with Torque 3 4" 1" Diameter Rail Base and Short Arm Designed for bigger insulated cups, plastic water bottles or even your reliable steel coffee cup, the Level Cup XL keeps your drink upright, regardless of the conditions. This kit includes a short arm and a Torque base that accommodates round rails from . 5 through 1. The oversized opening cradles the biggest of gulps and the adjustable bottom piece moves up and down to accommodate