Description:Made of laminated foam core board,the discs are flat,stable,and slightly cushioned.Super-bright 4 leds neatly reflected and amplified through the clear vessel and liquid.There are 3 modes:rapid flickering,slow flickering,steady mode, to meet your different needs.It is easy to use .Just stick it to any normal bottle or drinking glass,and click the button to turn on.It can be a beautiful bottle decoration. Suitable for drinks ads,bar,nightclub,wedding,event and party.Specification:Material: Glue/Electronic componentsBattery: 2 x Button battery(Built in)Color: Colorful changed/White/Red/Blue/GreenPackage Included:1 x LED CoastersNote:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 1-2 mm differences due to manual measurement.