Our new 4-Cup Holder harnesses the power of a 4 1/2″ SeaSucker to hold 4 cans or bottles in foam koozies. Made of 3/4″ starboard with 4 white plastic cup holder inserts, or you can swap out one of the cup holder inserts for a Small Dry Box (a small waterproof storage box for your wallet, cell phone, PDA, etc.) for an extra charge. Horizontal mount – use this cup holder on flat surfaces like your console. Look for our 4-Cup Holder – Vertical Mount for attaching to vertical surfaces.