Description Description: 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 Cleaning Up Specification: Top Diameter: Approx. 11cm/4.3 Bottom Diameter: Approx. 7cm/2.8 Depth: Approx. 8cm/3.1 Drain Hole Diameter: 8mm / 5/16 Material: Plastic Package Includes: 1 Piece Cup Holder(8 Pack) Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you.