Dimensions: 4 inch H - 3 1/2 inch Inside Diameter, 4 1/4 inch Outside Diameter, with flange Install almost anywhere on boat, game table, sofa, and RV. With drain holes in the bottom to keep moisture Install almost anywhere; table, counter top, dashboard, seatback, etc. No Mounting Screws Required Smooth Finish For Easy Clean Up This White cup holder is a perfect addition to your Poker, Blackjack or Pool , Boats, RV's, Patios, , decks, trailers or . It is a drop in style drink holder, all you have to do is cut a hole into the surface you wish to mount the cup holder. colour:white material:ABS Package Contents: 3 * cup holder Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.