Description: High class quality cup drink holder. Universal suitable for boat, marine, cars, truck and RV. Install almost anywhere; table, counter top, dashboard, seatback, etc. With drain holes in the bottom to keep moisture away. Flush mount with 3 screws and easy to clean up. Specification: Material: Plastic+Stainless Steel Bottom of Cup Diameter: 8cm / 3.1inch Top of Cup Inside Diameter: 8.5cm / 3.3inch Top of Cup Outside Diameter: 10.8cm / 4.3inch Package Includes: 1 Piece Cup Holder Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid