These Liquid Activated LED Ice Cubes have been very popular lately in many bars, clubs and are sure to be a hit at your next party as well! When placed in a drink, the liquid activaed LED lights flash in multiple colors (red, green and blue). Creates a "oh thats cool" (first drink) to "wow those are freakin' awesome! (about 3 drinks in) response from everyone in the room! And when you get a few drinks in a dark room with these cubes in them, its enough to just about illuminate the place! Great as a promotion to upsell a premium cocktail at your bar. Or use for non-alcholic drinks as well - kids love them, toss in their Kool Aid and watch their reaction! SOLD BY THE DOZEN • Liquid activation- no tapping required • Size: 1.25 inches on each side • long lasting lithium batteries (not replaceable, but last for days of continual use!) • perfect for parties, weddings, or an upsell on premium drinks at your bar • Clear cubes with color changing LED (flashes blue, green, yellow and red)