Multi Color Glowing LED Wine Acrylic Glass Cup Water Sensor Flash Light Liquid Activated Flashing Cup, Club Light Cup, Bar Cup, Christmas Party Club Decorations, This LED glowing cup is made of high quality sturdy acrylic plastic, transparent shine cup. It is a pretty effect as the colored light reflects off the sparkly crystals embedded in the bottom of the glass, then shines through the liquid in the glass. LIQUID ACTIVATED: Automatic water activated cup. It glows automatically when drinks are added and turns off when there is no liquid left. LIGHT-UP MODE: Multi-color fast flashing; slow flashing; steady on. This is a charming party cup with LED glowing light. In a lighted room, it will draw attention, but in dim light, it is a real eye-catcher, especially in the multicolor mode, really pretty and added a fun vibe. SIZE: 3.4″x2.8″. Suitable for parties, bars, wedding party, Owambe, Birthday party, a Perfect Gift The Boss, etc.