Acrylic Ultra-thin Led Coaster Round Shape Luminous Coaster Cup Mat

Features:
Made of fine quality acrylic material for long-term use.
Safe and non-toxic, water-resistant and wear-resistant.
Ultra-thin design, each coaster is 100mm diameter.
Built-in led light, which can make the clear containers such as wine bottle or wine glass become bright at once, perfect to decorate your bottles and drinks.
It can satisfy your needs of different occasion, such as birthday, wedding, cocktail party, dinner party, bar, etc.
One-button operation, easy to turn on/off the light.
Easy to use. Powered by a pair of button-batteries, no tools and wires required.