PACKING INCLUDE: 50 pcs Multipurpose Drink Coaster (10 x white, 10 x red, 10 x green, 10 x blue, 10 x multicolor). 3 LIGHTING MODES: Rapid flash, slow flash and steady mode to meet your different need, bringing amazing effects on your important or happy times such as party, wedding, cocktail party, dinner party, campfire party and any decoration for party at night. SUPER BRIGHTNESS: Each patch has 4 Ultra-High Brightness LED lights, which can make the clear containers such as wine bottle,wine glass,champagne,liquor bottles become bright at once. Different colors can make your party more amazing, and they also allow you to quickly identify your cup. HOW TO USE: TAKE OUT the insulation insert, then tear off the double-sided tape, stick them up to any normal bottle or drinking glass, and click the button to turn on. Indoor or outdoor, easy to carry, can be widely used for your needs. Tips: if the light not work, please try to check if the insulation part being taken out or adjust the place of battery ENOUGH WORKING TIME: Each product is with 2 CR1220 button batteries (installed in the product in advance). The battery can be used over 24 hours, which satisfies your need for the party. You can change battery by yourself to regain its long-time use. Colour:White Material:EVA Package Contents: 50 x Sticker Lights Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.