When you're in the middle of a devastating backyard water balloon battle, there's no time to be messing around with trying to tie balloon knots. It's really not all that easy to do under pressure. These cool new ZORBZ Water Balloons are self-sealing water balloons that let you reload your water balloon ammo faster than ever. Just fill a balloon with the garden hose (quick fill nozzle included), snap the balloon at the opening, and it's now securely sealed and ready to be unleashed. It couldn't be easier... unless you just spray everyone with the hose first.