Deep Blue Marine MB-2 Double Cup Holder w/Suction CupsMB 2 Double Cup Holder with Suction Cups This heavy duty drink holder storage box is designed to mount horizontal surfaces with suction cups or permanently mounted vertically with screws and hold insulated cans and bottles, most bottled water containers, and handled mugs. The center storage box measures approximately 3 1 2 x 5 x 3 deep and is ideal for cell phones, sunglasses, sunscreen, fishing gear, and more. Product Dimensions 14 1 8" x 5 1 8" x 3