... Straw 1.when water sucking, the straw will light up 2.assorted yellw, blue,green,red light Product NameLED ... Light-up Plastic Drinking Straw PackagePolybag+header card packageFlashing WaysWhen water ... sucking, the straw will light upLogo Customized logo is availableButtonAutomaticAvailable colorgreen, blue, red, and yellow color ...