24PCS Amazing Non-toxic Plastic Colorful Flashing Light UP LED Cups Shots Glass for Bar Party Holloween Christmas Romantic Drinking Size: 2.2''(5.5cm)(H) ,diameter: 2''(5cm) Main material : high quality, clear acrylic which is FDA Approved,use safety. Simple on/off button on the bottom of the cup Red Blue and Green 3 colors flashing together,very beautiful,Bar feel,long service life. High efficiency and energy saving, the three star AG13 electronic Batteries included,can be replaced.