Rongsi Soft Pilates Ball 9 Inch, Ideal Small Exercise Ball Between Knee Squeeze for Physical Therapy Yoga Core Bouncy, Mini Rubber Fitball Barre Workout Equipment for Women Men 2 Pac(Blue+Pink)

The balls were difficult to inflate. The pump was useless. I finally blew the balls up by blowing through the straw with my mouth. They lost air immediately because the closing mechanism was a separate piece.

Four stars only because I had to borrow a bicycle pump to blow them up. The balls themselves are fine.

I have had one of two total knee replacement surgeries and my rehab offoce has me use it. I purchased this so that I could do same therapy at home. easy to blow up and stays inflated. I use only 1 currently but have the other in case something happens to the one I am using. It was also a great deal for them. Highly recommend.

Overall, these are okay. What's good is that since you inflate them yourself, you can adjust the firmness, which is great if you're using it for therapy purposes. What's not so good is the inflating process itself. You'll need some sort of pump unless you can blow it up with your mouth. Getting the cap off the ball was a bit of a struggle. And you'll need to quickly replace the cap before the air escapes. Takes a few trial-and-error attempts. This product doesn't come with a pump.

I really was surprised at the quality of the balls based on the price. It is very sturdy. I had a little difficulty inflating it but was successful on the 3rd try. I was instructed by my PT provider to use it for my back it has helped a lot.

The pump is a straw that you blow up w/your mouth, it doesn't hold it's inflate, you have to literally blow up everyday.

Perfect for my therapy exercises!!!

if there was a zero I would have done it they're junk

The ball don't stay inflated.

Walmart's delivery service is great