Glow in the dark... GLOW IN THE DARK! Our Glow in the Dark Rainbow Skull tumblers are incredibly bright and really fun to show off to friends! Never lose your tumbler at a party again! Tumbler may glow green or blue. 20 OZ tumblers fit your favorite beverages perfectly. Cans of pop, Truly, White Claw, and more fit with just enough room for ice. Our tumblers can also be used for hot beverages. Complete with plastic reusable straw! Tumbler Care Instructions: * Hand wash only * Not microwave safe * Do not drop Stainless steel, double wall vacuum sealed.   The fine print: All designs property of Black Cat Bazaar. Hand wash only. Drinkware is not returnable.