Chumia 18 Inch Fun Bouncy Balls 5 Pcs Rubber Inflatable Kick Ball Bouncing Sensory Balls with Hand Air Pump for Park Backyard Beach Indoor Outdoor Games Party Favors (Bright Color)

Not even close to 18”. The ball was more like 12”. Will be returning.

My daughter loves them but the balls were all different sizes. If your ok with that then they should work for you. We still have all of them except one and the reason why we lost one was due to our fault not because there not durable..she plays with them everyday.

None of the balls were the same size and none were 18 inches. The largest was about 12 inches when fully inflated. The rest were even smaller. I bought these so each child would have the same size and be equal.

I started to inflate one of the balls. At first, I thought it was fully inflated around the size of 14.5'', smaller than the seller claimed (The ball was harder to the touch around that size). However, I read a review that says to keep inflating until it reaches 16''-17''. Against my instinct, I kept inflating. I reached the right size after a few minutes. (It was still tightly)My kid helped to inflate all the balls with the pump. He really enjoying play with them, especially outside the house. He loves the colors of each ball.From all the 5, the blue one was softer to the touch around 18'' inch.P.S: I recommend to use electric pump with these balls.The provided pump is fine but for inflating one at a time (not all 5 at once)

These made great party favors at my grandsons Birthday pool party. So inexpensive and a much appreciated favor… by both kids and parents! Also provided fun as a pool activity during the party! This was definitely a win win party favor!

My French bulldog loves playing volleyball off of his nose with these balls!!!! It is hysterical to watch!

Well the idea was cute but they're still pretty easy to pop

These are well made but all very different sizes, none of which are 18 inches