Flash Light Up Cup made of high quality environmentally friendly acrylic material, Size: caliber 8cm x height 9.7cm x bottom 5.5cm.Add liquid to activate the flashing multicolored LED in the base of the cup. The lights turn off when the cups are empty. When activated, the LEDs flicker, change color and glow in a beautiful changing rhythm.Ideal for parties, bachelor party, and special occisions, or decoration for Christmas, New Years Eve, birthdays, weddings, bars, clubs.This LED flashing cup including 4 colors changes: Red, Yellow, Green, Blue illusionThe sparkly crystal style design and unique dragon pattern, adding a fun ambiance to your gathering.Features- Light color: red, yellow, green, blue illusion- Material: Acrylic.- Size: caliber 8cm* height 9.7cm bottom 5.5cm.- Battery power: 2 built-in CR2025 button batteries, can be replaced.- Product capacity: 285ml.- Battery power: 2 built-in CR2025 button batteries, replaceable;- Battery available time: 24 hours in a row.- Perfect a cup of wine in the bar with a novelty mug.- Made of high quality environmentally friendly acrylic material, eco-friendly, containing no harmful substance.- You can drink water, coffee, tea this creative water sensitive mug- You will get different feelings.- A good companion for everyday use.Package Including1 x Dragon Pattern Light Up Drinking GlassesNote:1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting.2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.