Easy to Inflate: The pack contains 10 PCS, made of sturdy pvc material. Sizes are about 10” 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 be 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 10" 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. Use an electric pump with various sized nozzles to inflate them ! They inflated quickly and easily. The plugs were secure and not overly difficult to remove and replace. They have been inflated for a long time and won't lost some air easily. The colors are vibrant. Take it to see them held up well in your lawn party in the summer. It took little to no time to inflate them using a compressor. Nice large size making it pretty fun to toss around. The balls are a great size for the games to grab. These have been thrown, kicked, batted, and still look good! Most of the kids were little they were actually the perfect size for small hands to handle. All it took was a little soap and water to rinse off, deflate, and store properly to reuse next year. No fading or holes either despite being out in the sun/rain for that many days, even leave them outside rolling around yard ! Quantity: 10PCS Size: 10" when inflated Size: 12" when deflated