This custom Light Bulb Tumbler is a bright idea for a custom Prom keepsake, Homecoming dance favor, or Senior Night gift. It looks like a light bulb, but it's actually a 7" high plastic cup that holds 16 oz. of a favorite beverage. The light-bulb shaped tumbler includes a screw-on metal top and a 9" clear, reusable, and flexible straw. Add your choice of one-color imprint to one side as shown to customize the light bulb tumbler to match your school, event, or organization.