Meoky 40 Oz Glow In The Dark Tumbler With Handle And Straw, Tumbler, Butterfly GLOW-IN-THE-DARK. After 5 minutes of light exposure, the design glows in the dark for up to 30 minutes. For a brighter glow, place it under direct sunlight or a strong lamp. Glows like a star! HELLO, COLD DRINKS! With double-wall vacuum insulation, Meoky travel coffee mug beats the heat and keeps you cool. HELLO, "COOL" GUYS! A STRAW IN. Even a silicone tip defeats metallic taste. The lid does a good job at being 100% leak-proof if A STRAW OUT. FITS FINE- both hands and cup holders. Wide and thick handle helps with comfy grip, and offers relaxation by less pressure on finger joints. FEEL GOOD. REFILL LESS. 40oz tumbler with handle holds much beverages and avoid much walks to the kitchen. RELISH MORE.