🍹 Enough Quantity & Vibrant Color Assortment – Package includes 50 LED drink coasters (10 red/10 white/10 blue/10 green/10 multi-color), perfect for Club, Bar, Party, Wedding Decor. Pre-installed with 2 CR1220 button batteries per coaster, offering over 12 hours of continuous glow to keep the party going all night.Tips: if the light not work, please try to check if the insulation part being taken out or adjust the place of battery, and you can replace the battery by yourself. 🍹 Premium Material & Bright Illumination – Crafted from laminated foam core board, these coasters are flat, stable, and gently cushioned to protect surfaces. Equipped with 4 ultra-high brightness LED lights, they instantly light up wine bottles, glasses, champagne flutes, and liquor bottles for eye-catching decor. 🍹 Effortless Operation & 3 Lighting Modes – Simply remove the insulation sheet, peel off the adhesive backing to stick on any bottle/glass, and press the ON/OFF button. Choose from 3 modes: rapid flash, slow flash, or steady glow to match any mood or occasion. 🍹Versatile for All Scenarios –The round LED coasters are Ideal for parties, dates, family reunions, company annual meetings, KTV, bars, cafes, clubs, parks, gardens, and restaurants. Elevate both indoor and outdoor drinking experiences with festive, glowing accents. 🍹Must-Have for Drinking Nights – These multi-purpose LED coasters are a essential addition to any casual or formal drinking event. The LED bar coaster,Perfect for all transparent containers including wine bottles, cocktail glasses, champagne flutes,you'll love this light up coasters drinks.