DescriptionThis is plastic tumblers which feature led light. They will make a great addition to holiday parties, birthdays, weddings, sporting events, festivals, indoor or night events. Detach the bottom before washing. Filament in bottom chamber is there for optimum flashing performance. On/Off switch on bottom for regular use as well.Features- Color: As shown. - Material: Plastic. - Size: Approx. 7x7x8.6cm. - Fun plastic with an on/off switch, lightup cup, use colorful led lamp. - A variety of lights flashing alternately, long service life, automatic flicker. - Flickering in the with dreamlike feeling,Enjoy different drinking moment with this vivid shots. - High efficiency and energy saving - the button cell, use up can be replaced. - Enjoy every party with your beverage by using this unique cup. - Make A Great Addition To Christmas, Holiday Parties, Birthdays, Weddings, Sporting Events, Festivals, Indoor, Night Events, House Decoration uses, Bars.