C.R. Gibson Lolita Light Up Drinkware, Birthday Girl Lolita designed goblet style acrylic glass with light up stem Measures approximately 3.25-inches Wide x 7-inches tall and holds 8-ounces Just press the button to flash quickly, slowly, or create a constant glow Approximately 6 hours of flash time with included replaceable ag13/lr44 battery; base removes for cleaning Great for a holiday stocking stuffer, hostess gift, bridal shower or birthday surprise