Wine set type: cup
Power supply: 2*2025 button battery
Applicable: LED flashing cup is liquid activated, flashes when pouring beer, wine, beverage, water, etc.
Material: Made of clear polystyrene. Polystyrene is non-toxic and harmless
Durable: Not brittle like glass, doesn't even form sharp shards when broken.
Perfect for bars, parties, gatherings, decorations, clubs and other dark occasions