Description:The disc is made of laminated foam core, flat, stable and slightly cushioned.Super bright 4 lights reflect and magnify neatly through transparent container and liquid.Easy to use. Just stick it on any ordinary bottle or water glass and click the button to open it.It can be a beautiful bottle decoration.Suitable for beverage ads, bars, nightclubs, weddings, events and parties.Note:1. Due to the difference of light and screen, the color of the item may be slightly different from the picture.2. Due to manual measurement, please allow 1-2 mm difference.Specification:Product Name: LED Cup StickerMaterial: pcbledevastickerBattery: 2*CR1220Size: 6cmNumber of lights: 4 lightsLight color: red, blue, green, white, colorfulUsage: tear off the back tape, stick it on any ordinary bottle or water glass and click the button to open it. Package List:Choice 1:1pcs x Coasterswith button batteryChoice 2:10pcs x Coasterswith button battery