ZITRADES 6pcs LED Flashing Light up Wine Cup Glass BY ZITRADES It will light up flashing once pour wine/beer/juice/water into glass LR44 X 3 Battery included and can replacement if needs! RGB Flashing change color continuously Size: H3.54in(9cm)XDia1.38in(3.5cm) Ideal for the bars, parties, gatherings, decoration, clubs and other dark occasions