Popular with the occasion of party, bar and home.
LED colors: red, yellow, blue, green, white multi-light
Magic plastic illuminant cup mat coaster will flash when turn on the button
There is a on/off button hide on the side of the base
Made of high quality plastic materials
Dimension: 0.5 x 3.7in(L x Dia)
Battery: 3 x AAA batteries(not include)