Our Glow in the Dark (GITD) tumblers are bright enough to be used as a nightlight! The GITD Unicorn Tumbler makes a perfect gift for anyone who loves unicorns, and we find that more adults than kids like unicorns these days 🦄🦄 Just like other glow in the dark things, the tumbler needs to be "charged" with bright light (ideally sunlight) to glow the brightest. Tumbler may glow green or blue. 20oz tumblers fit your favorite beverages perfectly! Cans of soda, Truly, White Claw, and more fit with just enough room for ice. This stainless steel tumbler comes with a plastic lid helps to keep your drink in place and keep it just the right temperature for longer. * 20oz white stainless steel sublimation skinny tumbler * Double walled, vacuum sealed, heat insulated * Eco friendly, BPA free, lead free * For hot or cold beverages * Includes your choice of reusable plastic or metal straw Pictured with: GITD Skull Tumbler, GITD Graffiti Tumbler, GITD Graffiti Bomber Jacket, GITD Unicorn Pin, GITD Skull Pin NO VINYL – all images and writing are printed onto the tumbler and does not peel. HAND WASH ONLY - straw & lid are dishwasher safe. To keep your tumbler beautiful for years to come, DO NOT put it in the dishwasher. DO NOT DROP - tumblers can dent when dropped. The fine print: All designs property of Black Cat Bazaar. Hand wash only. Drinkware is not returnable.