I purchased a 75cm ball but could only inflate it to 63.5cm. Does the ball need to stretch a bit before it can reach the 75cm size?
269072
Yes. inflat to the max. wait a few days,use it, sit on it. In time it will stretch out. You feel the difference once it's stretched out.
1690822
I have not tried to inflate a dryer ball. usually by the time one goes flat I have had it for quite some time so it just gets replaced. Sorry I'm sure that wasn't much help. Did you try contacting the maker about this matter?
250208
You might want to send an email to the seller through Amazon. The ball I got was extremely sturdy.
2192418
approximately 13.69 inches pending proper inflation on the ball we purchased.
993146
To be honest. I have had this ball for about 6 months now and I haven't had to pump it up since I did it the very first time. Air leakage is not a problem.
79570
I am in the same boat. Mine came a bit inflated but not enough to use. Trying to inflate with pump (not provided) I don't feel much progress is happening.
1234130
It should be tight (or the ball wouldn't bounce back very far at all) but will fit right if you have it and the straps on right. Look at the picture and make sure you aren't doing anything wrong. You may want to try all of the corners first and then fill in the sides.
34847
I don't see why not. I was surprised at how little air it took to inflate. My beach ball used more air.
265282
It's a large exercise ball and fills the space in the chair. The instructions actually tell you to pump it as full as you can, and then the ball will stretch and you can add more air. I added air for about the first week until it was what I consider fully inflated. It hasn't needed more since then. Hope this helps.
1758833
Mine was not inflated enough when I got it, however one could have played with it in a pinch
331665
Depends on what you are using it for. The work out video is lifting and stretching mostly. 75 CM is almost 30 inches, I am 5'10 and use the ball to sit on like a chair sometimes. 75 CM is the largest of them
1728650
This really depends on your personal squatting needs. 75 centimeters is pretty large for an exercise ball in general, but I've never tried using a ball for squats, and I'm not sure of your technique.
2271226
Well, I have had mine for months now and would suggest you check if it is has been inflated to the recommended measurement. If your ball has been inflated to the correct measurement, then you should not have the ball slipping through the hole as my mister weighs more than you do and he doesn't have a problem when he sits on this chair. That said, you might have a problem with maintaining the inflation, so when you inflate it take note of the measurement and re-check it in a few days. If you find it isn't a problem to maintain the balls inflation, try inflating the ball to maybe another inch larger as the suggested measurement is not "written in stone." Also, I saw on a previous answer that the back rest doesn't work?? I would love to know what that comment is about as the "back rest" is not meant for you to rest your back upon-- it was never meant to bear any significant amount of weight. It's there pretty much to make sure the ball doesn't roll off the ring.
1765625
I imagine it should fit, but honestly don't "know." It's pictured with a 55cm ball and I bought a 45cm that doesn't fit snugly into the base. that's why I think the larger ball may even be more stable in this base than smaller ones. Enjoy!
39974
I think you have to exend yours out to make it tighter. I made mine pretty taut. First, unscrew it so that it'sabout 4-6' wider than the space, then compress it so that it fits in snugly.
1116052
The ball itself , It will squeeze flat yes. It doesn't stay flat on its own. It's like a spring .
10711
Yes. Always be sure to partially inflate the tube and then double check to make sure you're not pinching it in the bead of the tire before fully inflating.