LED Old Fashioned Glasses: 7*5.5cm Liquid Activated Multicolor Light Up Drinking Tumblers Set of 4 - Plastic Fun Cups for Water Beer Cocktail Whiskey Bar Party

[MATERIAL]: Led cup is made of high quality clear acrylic, one kind of materials, is non-toxic harmless. [LIQUID ACTIVATED]: Glow in the dark. The flash cup light up as soon as liquid is poured into the glass and the colors are fun and vibrant. It turns off when there is no liquid left [SIZE]: 7*5.5cm [Batteries]: LED light up cup is powered by cell batteries. When the batteries wear out, it looks simple enough to replace them. Stick a penny into the battery cover slot, give it a counterclockwise twists, and it pops out to access the battery compartment. [Eye-Catching]: A nifty novelty item for parties and any kind of get-together, a huge access to be a hit at a party. In a lighted room, it will draw attention, but in dim light, it is a real eye-catcher, especially in the multicolor mode, easily pretty and added a fun vibe.NEED MORE CHRISTMAS DECORATIONS? ❤【Plastic Material】Light up drinking glasses are made of high-quality hard acrylic plastic, durable and reusable. ❤【Automatic On & Off】Simply adding liquid activates the colorful LED lights at the bottom of the cup. When there is no liquid at the bottom of the cup, the light goes out. ❤【Aesthetic Look】Designed with unique lines and matched with colorful lights, the whiskey glass is a perfect gift for yourself, friends, family or co-workers.