iRunning 500 Pack Self-Sealing Water Balloons, Colorful Water Balloons Bomb with Refill Kits for Summer Water Balloons Fight …

Works like balloons should

These water balloons were fun but not very durable or consistent on staying blown up. Many popped or the foam plug would pop out.

Can't use the kitchen sink but that's OK. Bought these do my sons B-Day water fight. Did a trial run with one seems awesome.

I loved not having to tie them, however I did notice some of them would lose the water if they didn’t sit up right.

Not much faster than traditional to fill, but did save my fingers getting rubbed raw from tying. Not too study though.

El agua se sale con facilidad.

So much better to reload the used straws! Bands are a nice strong quality and always keep balloons closed. Need to have strong fingers to load the rubber bands, and patience! Good thing to do while watching tv.

Sure they're self sealing if they're kept perfectly upright and you fill them up enough. We ended up just tying all ours. Even if you could figure out a system to prop up 500 balloons, after you used them, your whole yard would be covered in foam balls! We had fun with these but would never buy them again. They didn't save any time and cleaning up afterwards was a slog.