Make your party livelier and more fun by placing our White LED Bottle Illuminator Coasters under transparent bottles & glass. They feature bright white LED lights and have several modes to choose from. LED Illuminators are perfect for rave parties, nightclubs, discos, restaurants, bars, and other night events. Amaze everyone with your lights add-ons to their drinks. 2 CR1620 batteries are included & installed. Sold in a pack of 12 illuminators. Please order in increments of 1 pack.