eSmart 10 Oz Light Up LED Drinkware Blinking Water Activated Color Change Flash Plastic Beer Whisky Shot Glass (3) Simple push-button on/off mode selection switch Made of high quality clear acrylic Comes with 3 LR44 (AG13, L1154) button-cell batteries preinstalled! Light-up mode: Rainbow Capacity: around 10 oz; Height: 3 1/2"; Diameter: 3 1/4"; Weight: 4 oz.