Goture Stainless Steel Cup Drink Holder with Drain Marine Boat RV Camper Rod Stainless steel self draining recessed cup holder ;Install almost anywhere; table, counter top, dashboard, seatback, etc. Excellent Quality,Replaces plastic drop-in cup holders with ease. Made of stainless steel for supreme corrosion resistance DIMENSIONS: The Goture Steel Cup Drink Holder with Drain has a height of 4 inches, Top Inner Dia. of 3.5 inches, Top Outer Dia. of 4.25 inches and Bottom Dia. of 2.8 inches with a hole cut out of 3.75 inches needed. Includes drain with hose barb, mounting gasket and internal pad.Please Check The Last Picture To See The Size