This vibrant glow in the dark mini stainless steel tumbler is perfect for little sips. Featuring a plastic lid and stainless steel straw, the double walled design will keep drinks cold for longer. Customize with vinyl, stickers and more to personalize for yourself or gift to a friend. Details: Glow in the dark green 3 fl. oz. (88.7 mL) Double wall Hand wash Do not microwave Cold liquids only Stainless steel, plastic and silicone