PACKING INCLUDE: 25 pcs Multipurpose Drink Coaster (5 x white, 5 x red, 5 x green, 5 x blue, 5 x multicolor). 3 LIGHTING MODES: Rapid flash, slow flash and steady mode to meet your different need, bringing effects on your important or happy such as party, wedding, party, , campfire party and any decoration for party at night. SUPER BRIGHTNESS: Each has 4 Ultra-High Brightness LED lights, which can make the clear containers such as wine ,wine glass,champagne,liquor bottles become bright at . Different colors can make your party more , 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 up to any normal or drinking glass, and click the button to turn on. Indoor or outdoor, easy to carry, can be widely used . Tips: if the light not work, 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 long-time use. Colour:White Material: Package Contents: 25 x Sticker Lights Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed is +/- 1-3cm.