This Light-up Prom Tumbler With Straw will be the delight of your big event, because it is designed to match almost any Prom theme you want to pair it with. Made of sturdy clear acrylic, the 16 oz. travel cup comes with a matching lid and straw and features red, blue, and green LEDs that flash on and off quickly to produce a cool special effect. The flashy travel tumbler comes with our stock Prom design as shown and is ready to ship out to you the same day you order. Replaceable batteries are included.