Chumia18 Inch Fun Bouncy Balls 5 Pcs Rubber Inflatable Beach Ball Bouncing Sensory Playballs with Hand Air Pump for Park Backyard Beach Indoor Outdoor Party Favors

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

So these are "play balls" as retailers call them, PVC roto-moulded bouncy balls. They are very similar to the balls found in a big rack at big box stores in the US, except these are a nice big 18 inch diameter. They are more durable than a beach ball, less so than a yoga/gym ball. Most sellers on Amazon do not include much in the way of instructions for use, so here are some pointers:1. Inflate the balls to a size less than rated (say 16-17 inches diameter or when firm) and allow to rest for a while. This type of plastic has some memory effect to overcome upon re-inflation. These balls will reach final size in 24 hrs.2. Use an automatic pump/compressor. The hand pumps which are included are a nice gesture, but are really painful to inflate a big 18 inch ball with, much less all six included balls.3. Keep away from sharp objects, thorns, rocks, etc. Note that surface scratches degrade the balls' strength.4. Some dogs love to chase and bite these, just don't let them eat the plastic if it pops.I gave these five stars because the quality/durability is what I expected. The colors were accurate with the balls I received.

There was false advertising to say that these are 18 inch in diameter. Lucky if you can get 12 inches. Problem is that you don't know this until you try to inflate them. Very disappointed after reviewing other similar products with the same advertised size. I would not recommend these if you need the 18 inch diameter.

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

Got these for our Corgis to herd.They love themThe dogs will break them so we leave them a little underinflated to last longer.The pump is useless ... You should use a good bicycle pump or electric pump.

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!

I bought these for a specific purpose to hold up patio covers on a table and 4 chairs. They needed to be 18" so I ordered these as described as 18" in diameter. Well.... as lots of bad descriptions here.. these only measured 13" when blown up to nearly bursting. I am returning. Beware... if you really want an 18" ball, these are not for you!

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