ball height/firmness? If this ball inflates to a full 75cm that would make it 29.5 inches high, right?
155386
I know this post is two months old, but I just received this exercise ball today. I'm also using it as a computer chair, and am replacing a previous ball that was a gift and my cat saw fit to use as a scratching post substitute. I have mixed initial impressions of this Max Fitness ball. It seems sturdy, but not tall enough for someone who's 6' 0". I'll try it out for a few days of course, but I'll be taking a look around Amazon to see if there's anything larger. Unfortunately I don't know the size or even brand of my previous ball so I can't compare, but it was noticeably bigger than this one.
1780096
30 inches when opened and ready for use, but I see other people have different heights...
544788
Actually, it IS a valid question. They dimensions are listed at least FIVE different times, with at least three different answers, so one might wonder which is correct. I would have to assume that the product is not as deep as it is wide (or it would be squarish) nor is it merely 35 inches high. Therefore the dimensions listed in the TECHNICAL DETAILS are off. Scroll down to the PRODUCT DESCRIPTION and it first lists the product as being 7.5 inches tall. At the end of the paragraph it lists the product as being more like 70.5 inches tall. Some discrepancies here. Hate to see a man harped on for a valid question. Read reviews from the other customers. It is likely that one lists the dimensions.
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!
1894345
We purchased two and we were surprised that they were compressed into a rather slender box, but once we unwrapped them and let them re-inflate, they were exactly as they had been described on the site. We have used ours many times and they actually are quite comfortable. If after 24 hours they are not 4" in all areas, I would suggest that you contact the company and request a replacement.
1195118
From the floor to the top of the ball it's 25" and from the floor to the top of the back rest it's 32". That's what I have it set at for me. I am 5'3. You want to be sure that the ball is inflated so that your thighs are perpendicular to the floor. Hope this helps!
268768
This is not so much an answer as it is a comment. The answers are all over the map. But the #1 answer (28mm) is not accurate, if the ball size is 1.5" (38mm). How can the overall height of the device be less than that?
1546810
My ball is a "Go Fit" and I think it is 65 cm. When I looked at it, the six is a little worn (the paint), but it is either a 55 or 65 and I"m betting 65 cm is kind of the standard. Mine fits perfectly and now I can use my ball for computer work or paper work and not worry about falling off, which I did a lot before. You can change positions, bounce, etc. It is GREAT. Susan
688178
Depends on the type of ball, I guess. I tried to use it for a 75cm yoga ball and it failed miserably.
265610
I have a medium sized ball. I have a partner who is 250 at the most and I have found that the ball is not big enough or resistant enough for a larger, heavier person wishing to use it as it is advertised.
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.
269588
I have a large exercise ball that is about 18-20" high (radius measurement) and it works great. I think it would be fine for anything that you really want to be careful about how much air you are adding- and not to overinflate the ball, like if you used a high powered home air compressor.
1451443
I believe it is Diameter. 75cm converts to 29.5 inches and just from looking at it I would strongly say it is diameter and about 92.5 inches in circumference
438943
The height doesn't change when you roll it up (or at least not by much). Also, they don't really inflate, so much as unroll. Imagine a pillow filled with little cubes of that egg-carton foam which instantly pops back up once you take weight off of it.
2192418
approximately 13.69 inches pending proper inflation on the ball we purchased.
60679
Hi Paul - While the backboard is 18" x 12", the rim is likely to be commensurate with the 5" size of the inflatable ball.
830448
Yes-it's very easy. You should not inflate this ball fully. Mine is about 3/4s full. It's a personal preference.