This unique Bright Idea Light Bulb Tumbler With Straw makes a "notice me" fundraiser or giveaway for your high school science fair or favor for your Senior Class Party. Made of clear BPA-free plastic, the single-wall light bulb shaped travel mug holds 20 oz. and includes a screw-on metal lid and matching straw that is straight at the top and bends into a swirl shape - resembling a light bulb filament - inside the tumbler. Add your school name, event, inspirational message or other one-color imprint to the front of the tumbler to customize it for your school event. Hand wash only.