These are easy to use, store and transport. They do not hurt when thrown at the body. I find these easiest to fill in a bucket of water. We bring 2 buckets to the park, we fill one with water and the other with the full balloons. They stay in tact as long as we place them gently inside the empty bucket, and don't easily open mid-throw.I love that the clean up after is easy, there is no need for unnecessary trash and we have been able to use them over and over again.