Flashing Panda 2 oz Light-Up Flashing Shot Glass, Multi-Color LED Lights, Replaceable AG-3 Batteries (included) Push-Button on the Bottom to Turn On/Off Made of high quality clear acrylic Comes with 3 AG-3 button-cell batteries preinstalled Capacity: 2 fl oz (to brim); Height: 2 1/4 in.; Width: 1 7/8 in.; Weight: Under 1 oz.