It's Hocus Pocus Time Witches, Glow in the Dark Tumbler

No tricks, just treats! This glow-in-the-dark tumbler is great for your Witches Brew when you take the kids trick or treating or any time of year. Glow tumblers need to be "charged" in sunlight or direct light for 2-4 minutes to activate the glow. The longer the charge, the longer the glow. The regular colors are vivid and gorgeous. 20 or 30 oz. Skinny Stainless Steel Tumbler. Features double-wall vacuum insulation (hot/cold) with a clear sliding lid, straw, and silicone bottom. The mug fits most standard cup holders. It is 2X heat & cold-resistant compared to a normal travel mug and is BPA and lead free. Made from 18/8 gauge stainless steel (18% chromium/8% nickel).