Ideal for festivities, dates, family gatherings, KTV, cafes, clubs, outdoor parties, and restaurants These mats add to fun and visual appeal, making they essential for indoor and outdoor drinking occasions Take out the insulating sheet and tear the glues on the surfaces, stick the LED coasters to any normal bottle or drinking glass, and press the ON / OFF button There are 3 modes to choose from: rapid flashing, slow flashing and stable mode impressive lighting with our LED drink mats, highlighting 4 high intensity LEDs per mat that instantly light clear canisters like bottles and glasses Complete 30 Piece Set –This package includes 30 drink mats, each pre installed with batteries for immediate use With 5 mats in each of six hues, improve your counter or home decors Crafted from ABS, each mat is stable and lightly cushioned The LED beads extended life, propelled by built in CR1220 batteries, and is easy to replace for continued use