ZITRADES LED Light-Up Flashing Rocks Whisky Glasses with Multi color changing BY ZITRADES It will light up flashing once pour wine/beer/juice CR2025X2 Battery included and can replacement if needs! RGB Flashing change color continuously Capacity: around 10 oz; Height:3.54in(9cm) Diameter: 3.35in(8.5cm) Ideal for the bars, parties, gatherings, decoration, clubs and other dark occasions