The RAP-395W-132U consists of the RAM Level Cup™ Self-Leveling Drink Holder, connected to a wedge shaped base, that slides and locks on the side of RAM STACK-N-STOW™ Bait Boards. The drink cup holder has two pivot points, allowing for your drink to always stay upright and never spill. Koozie is included with purchase of the RAP-395W-132U. Compatible with any cups, cans, bottles or mugs ranging from 2.5” to 3.5” diameter.