Our LED 16 oz Crystal Tumbler is the perfect choice to light your party drinks. Each cup comes with 3 bright LED's red, blue and green and has 3 functions slow flash, fast flash and steady on as it morfs from one color to the next.  Our 16 oz. cup is 7"H and comes with a 9"L clear straw and a 4" clear lid. Perfect party favor at holiday parties from Christmas to New Year's, sporting events, birthday & graduation events, too.  Each 16 oz Crystal Tumbler comes with (3) replaceable AG13 batteries installed. Please note: Hand wash only & not microwave or dishwasher safe. Ice effect in cup will settle; appearance may vary creating different icy effects. Call for information on imprinting with your logo.