My Smart Snacker instantly turns a standard cupholder into a cup and snack holder! Use it in the car, camper, lawn chair—even at the game. Plus, it doubles as a coaster—just remove the base. Includes a lid for the snack compartment and one for the base. Plastic. Overall, it's 7 1/4" l x 5 1/4" w x 6 1/2" h. Removable base is 3" diam. x 3" h.