Trideer Yoga Ball Exercise Ball

Fast shipping. The foot pump will give you an extra workout for FREE! Happy with the ball. We use it as a training tool/missle in our wresting room nearly everyday and hasn't punctured. Stands up to the biggest kids and the sharpest teeth or even braces. The 55cm is perfect size for maintaining a low athletic position. when rolled across the floor wrestlers learn the fundamentals of motion and position. Great product at its price point.

Update: The seller contacted me and offered to send me a new ball, which I accepted. I got it yesterday in a sealed package and am very happy with it. Like other reviewers have said, it feels like a very sturdy ball. When it's fully inflated, it doesn't sink down like other balls do.The box had been opened and the contents in the plastic bags were opened too, Scotch tape was used to seal them. I felt it may have been a used ball. The ball felt sturdy and I liked it. I did not want to go through the hassle of returning it and the same thing might happen again. So I kept it. I hope it will hold up.

UPDATE: As a result of my 2 out of 5 review, I was refunded and given a new ball. The new ball is of noticeably better quality and is very sturdy. It came in a box that looked very different from my other one. I'm convinced I got a counterfeit ball before. This ball that I got directly from Trideer is excellent!OLD REVIEW:I use these as a chair at my desk at work. My first one of these worked like a charm for several months and then all of a sudden deflated (I assume something poked a hole in it). My second one however has to be re-inflated every few days or else it'll completely deflate. Very annoying and will not purchase again.

The pump is hilariously underpowered and cheap and has a raft style adapter, so you can't simply hook it up to a bike pump.Once it's up it's pretty much everything I expected it to be. A little off-sphere but not worth hassling a return over. I use it for a desk chair, I'm sitting on it many hours a day and often bouncing up and down gently. It holds air really well. Careful around sharp stuff as the soft rubber will obviously scratch easily. Kittens...

The ball seems like any exercise ball I have ever had. Thick, bouncy and withstands a beating from my kids. I bought the size recommended for my height. It seemed small after aired up, but ergonomically it was correct. When I sit on it my knees bend at a comfortable 90 degree angle. Wish there was an option to purchase without the pump.

This ball, is a must!! I exercised for quite some time during my pregnancy pregnancy. It’s made of nice material to where you’re not sliding all over the place. It’s also very sturdy!! I labored on this ball and now I do postpartum exercises on this ball. The pump is manual step pump but you can also use a bicycle pump if you have one on hand. Get this ball it’s an amazing product and is easy to use.

I'm 5'2, 8 months pregnant, I weigh 139lbs and the recommended size ball (M-55cm) did not suit me. Your knees are supposed to be below your pelvis but they were not when I sat. My knees were still higher so it felt like I was leaning back on the ball. In order to sit upright I had to really lean forward and drop my knees which made my legs open wider but hard to balance. Material was thick as advertised. Pumping the ball with air was more difficult than I expected, you have to pretty much stand and press on the pump, but it took me a long time to fill, being pregnant and difficulty going fast. They provide a paper measuring tape, you tape on the wall to measure to size, not the most convenient.Update: purchased a larger size (L), better suited for me I think height and weight wise. Material is thick.

Ball was as described and has held up well with daily use as an office chair. I had to refill it every day for the first few days as the material stretched out but now has held up well. I top off the air in it about every 2 weeks or so when I notice it getting too squishy. I'm 5'9" and this has made a great office chair replacement, helped with posture and is much more comfortable.