The luminous coasters can be served for home, carnival, theme party, costume party, school activities, show and more, which can create warm atmosphere and give you unforgettable festival experience. Features -Color:White -Material:EVA -Size:6.00X6.00X0.50cm/2.36X2.36X0.20in - Battery: 2 x CR1220 - Working time: continuous use for about 10 hours - Beautiful bottle lamp suitable for beverage advertising, bars, nightclubs, weddings, events and parties. - Decorate your bottles and drinks with this beautiful LED lights coasters, a nice decor. - Enough LED cup coasters, so these LED cup coasters can meet your different needs. - Lightweight design, so it's convenient to carry these LED cup coasters to where you need. - LED lights reflect and amplify clearly through transparent utensils and liquids. Package list: 12 coaster