The big, bold and bright Light Up Coasters use LED lights to create a fantastic, awe inspiring light show. As soon as you put your drink down on the pressure sensitive surface, the Glowing Coaster comes alive! Light Up LED Coasters are a fun and exciting addition to any dinner party, event, or gala! Available in a spectacular multi-color color changing option or with stunning White LED lights or brilliant Blue. The coaster itself is over 3 1/2 inches wide and will fit most drinking glasses, bottles and vases!