CalCore Exercise Ball Chair from Professional Strength Antiburst Ball with Hand Pump for Office, Yoga, Stability and Fitness

I bought this as a ball replacement for a "ball-chair with a base" that I own. (My son popped my other ball doing something he shouldn't) This one is a huge disappointment. Waste of money. The ball is made of a material that is way too stretchy and squishy for a chair. No matter how much I pump this up, when I sit on it--it squishes down and flattens too much and I am reaching up for my desk. Did not have this problem with my other ball at all. Forget trying to put it in the base. Won't fit. I have had this type of chair for years so it's not inexperience making this awful. Also, you can't get the pin out of the ball once you put it in. I had to go get a pliers to pull it out. (I have been putting more air into it over and over to try to fix this flattening). In addition, if you are new to this type of chair --there are no instructions at all. The 2 good things: The pump is good and they give you two pins for the ball in case you lose one. But Thumbs Down for overall satisfaction!!

My body starts to hurt from sitting in a chair at the office all day. This ball does help, but a holder with wheels would be beneficial. I made the mistake of making a couple very sudden moves and found myself on the floor. And when you get up from it the ball will tend to roll whereas a holder would make it more controllable.

I'm a little disappointed as I thought it would hold air better. I can't find a hole, but I have to add a lititle air to it every week. I checked with my sister who uses one and she hasn't had to add air in over a year. Mine may have a seam leak. It's a great size and looks as though it is made of very durable material.

CAME WITH PUMP, FAIRLY EASY SET UP, BUT NOT HIGH ENOUGH FOR STANDARD DESKS. I FEEL LIKE A 2 Y/0 AT THE KIDDIE TABLE.

The ball is easy to sit on and allows me to sit comfortably at my desk (I'm 5'9"). However the pump provided is a workout to use on its own.

My wife has a desk job with a normal desk chair and started to have some lower back aches due to being pregnant. I bought her this ball and her strength and posture and comfort has gotten alot better.

This works great for my desk at my home office. Currently pregnant and have to sit for several hours per day and it was starting to strain my hips. This saved my life! Only thing I would say I didn't like is having to pump it up was annoying since I am pregnant. My advice, get a man to do it for you ;)

It's perfect except for the new vinyl smell like you get when you open a pool raft. I am in physical therapy and using the ball there. It is nice to have it at home to do low impact exercises an range of movement. It came with a hand pump too, nice.