Amarine-made (Set of 3) Black Recessed Plastic Cup Drink Can Holder with Drain for Boat Car Marine Rv - Black Dimensions: 3-1/2" H - 3 1/2"ID, 4 1/8" OD, with flange Install almost anywhere on boat, game table, sofa, cars and RV. With drain holes in the bottom to keep moisture away Install almost anywhere; table, counter top, dashboard, seatback, etc. No Mounting Screws Required Smooth Finish For Easy Clean Up