Entertain your guests with these cool light-up coasters. These coasters are made of light weight durable plastic so they'll last long, a rainbow of LED lights entertain anyone with a beverage. This item makes a great addition to your bar, restaurant, nightclub, or lounge. Grab one of these cool coasters today! 0.8" x 3.7" diameter. this illuminating product is an outstanding giveaway for restaurants, bars, nightclubs and more. Your logo is welcome