Liquid Activated! Just add liquid to activate the flashing LEDs. The lights turn off when the cups are empty. When activated, the LEDs flicker, change color, and glow in a beautiful alternating sequence Great for parties, bars, nightclubs or discos! These cups are certain to impress and entertain! Made of durable acrylic plastic in a classy, old-fashioned crystal design Batteries are included and replaceable - Two CR2025 lithium batteries are pre-installed in the bottom of each cup. Replace by twisting the liquid resistant compartment with a coin. Great for parties, bars, nightclubs or discos, these LED light-up cups flicker, change color, and glow in a beautiful alternating sequence once liquid is added! Made of durable acrylic plastic in a classy, old-fashioned crystal design, these cups are certain to impress and entertain! The lights turn off when the cups are empty, conserving the batteries. Batteries are included and replaceable - two CR2025 lithium batteries are pre-installed in the bottom of each cup. Replace by twisting the compartment with a coin. The battery compartment on the bottom of each cup is water resistant but these tumblers are not dishwasher safe. To prolong the life of your cups, simply hand wash after use.Product Weight: 1 LB
