Easy to Inflate：The pack contains 10 PCS, made of sturdy pvc material. Sizes are about 8” to 12” from inflated to deflated. The balls are superior workmanship and comes in no adding air to the ball. No seal issues on the top by the valve. They hold air for overnight and you will surprised to find no deflated. Fun In the Sun：Perfect size to have multiples of during your party without being so big. The kids will have a great time kicking them and chasing after them outside. Soft enough that they cant hurt anyone or anything. Great Playing Favor: None of them had any holes, and they hold air and their shape nicely, hard to blow up, worked out well as party favors for pool party. Can be used in a variety of ways and also suitable for elementary math classes. Play Time Is All the Time: They are about 8" wide when inflated, which is perfect for young boys girls. You need something low cost, fun, and safe for energetic boys and girls. The kids can throw it around the house with no issues even unsupervised.