LED Automatic Flashing Cup Transparent Mug Color Changing Water Bottle Beverage Drinking Glass Wedding Decoration Party Supplies<br> Liquid Activated: When drinks are added, it turns off when there is no liquid left<br> Material: Made of clear Polystyrene. Polystyrene is non-toxic harmless<br> Durable: Not as fragile as glass, even not forms sharp fragments when broken.<br> Powered by 2*2025 button cells (Included).<br> Ideal for the bars, parties, gatherings, decoration, clubs and other dark occasions<br> <br> Specifications:<br> Material:Polystyrene<br> Drinkware Type:Mugs<br> Security:food safety<br> Powered by:2*2025 button cells (included)<br> Flashing time: Around 28 hours<br> Applicable:The LED flashing cup is liquid activated, twinkle when pouring beer,wine,beverage,water,etc<br> Specifications:<br> Applicable:The LED flashing cup is liquid activated, twinkle when pouring beer,wine,beverage,water,etc<br> Package Included:<br> 1 x Flashing Cup<br> Notes:<br> Due to the difference between different monitors, the picture may not reflect the actual color of the item.<br> Compare with your detail size, due to manual measurement, allow 1-3cm error.<br> If there is a problem with the product, please leave a message before giving bad feedback.<br> Thank you for your understanding.