This jack-o-lantern stainless steel wine cup is far from ordinary! With a wonderfully spooky design, this Evergreen exclusive cup glows in the dark and is perfect for elevating any Halloween drink. Made from double wall stainless steel, this tumbler has a vacuum seal to keep cold drinks cold & hot drinks hot. The wine tumbler holds up to 12 ounces. Hold under light for 10-15 minutes and the design will glow for 1-1.5 hours. Hand wash only.