Heart Shape Activated Blinking Led Glass Cup Features Heart Shaped Party Liquid Activated Blinking LED Light Up with 7 rainbow colors Drinkware Plastic Mug Imagine holding a luminous Mug in your hand, where the whole mug, and the beverage inside, spin with many colorful lights! This light-up LED mug is made of a high quality, safe, clear acrylic, with replaceable batteries. The bottom cap which houses the electronics pops off for safe and easy cleaning of the mug. A great Gift Idea! These super-cool LED Beverage Cups make great gifts for any occasion or party goer, and are great for that hard-to-shop-for party person. It glows automatically when drinks are added. Guaranteed to build moods for your party; Perfect decoration for your party, bars and discos. Read Less