Seekingtag Light Up Flashing LED Balloons With Various Colors - Pack of 20 - 12" - Perfect For Parties 20pcs LED balloons in package(yellow/white/green/blue/red x 4) Maximum inflation is 12 inches, can be filled with helium and air Batteries can work last over 48 hours Easy operation, pull the tab to start LED balloons blink with different colors Light up the dark for your parties, all your colored balloons golw in the dark, makes a great state