Can you use any size ball with this? I usually use a 75" on the floor but it is too short so I wanted somthing to raise me up more.
499450
I have only used the ball that came with it but you should be able to use a bigger ball with it. The worst case would be that it would be too tall to use the back rest.
499451
Yes! I changed my ball (when I punctured it with the scissors I use as a seamstress) and chose a larger size. It does create some problems with the back support. A design improvement to this chair would be to have the legs be far more adjustable.
499452
I have never tried a ball that large, but the chair does accomodate a larger ball. The back rest is arched outward and a larger ball would fit better in the ring at the bottom. The ball it comes with tends to slowly sink down to the floor. My ball stands about 20" if measuring from ground to the top. There is about 6 more inches when the ball is on the chair from the ball to the bottom of the chair back. So if your ball is taller than 26" it probably wont fit. If less, then it probably will. Worst case, if your 75 doesnt fit you still have the one it comes with.
499453
Probably not, the base of the chair may not allow for a larger sized ball. the chair has adjustable legs.
499454
The chair comes with it's own ball, and a circumference tape to check inflation. If the ball is sinking through it is underinflated. I had that problem in the beginning, and once properly inflated (by air compressor not the cheesy hand pump)it has been fine. I'm sure you could use a larger ball, I tried one but it was actually too tall once in the chair frame and I went back to the original. And yes you do lose the back support with a larger ball, but the whole point of the chair is to engage your lower body, so the backrest has always seemed more cosmetic than functional to me.
1315631
I am 5'2" and the 55 cm ball is perfect as an exercise ball, but if I sat on it at work I think I would be too low to use a normal height desk. I would recommend having the ball stored under the desk and a chair and alternate between them. Also, at 5'2" if I did want to sit on a ball at work I might go for a bigger size. I don't remember if there is anything in between 55 and 65 but I think I could do 65 for sitting only.
1796984
Mine is right about 30" although I suppose if you inflated it more it would expand, much like a balloon can be a good deal larger if you put more air into it. Since 75 cm works out to 29.5" then arguably it would be over-inflated at 44". It depends what you want out of your ball - if it needs to be stiff then you would need to inflate it to be larger, because mine is quite bouncy at 30".
975914
I would guess the ball is around a foot high. If your bed is low it won't get under it. Plus the vacuum won't go completely flat. The wand with the tiny vacuum attachment works great for this though.
1408442
I guess it depends on how rough he is and if he is going to try to hang off it. My DD ct is 5'4 and all she does is throw the ball. We have it up at the six foot level. I would think it would be fine. They can always move back from the net if it becomes too easy.
1143922
Size doesn't matter...I'm five feet tall and husband 5' 10.... Both have used it. Be sure and get the trampoline attachment if yours doesn't come with it, that is if you want to do cardio. It's worth the extra money
133114
I got one of the smaller sized ones and when I sit on it I am sitting at a height just over the middle of the ball...so I dropped about 1/3 of the way. I'm sure the size of the ball and your weight will determine how low you'll go but in my opinion, this ball doesn't sag like others I've had in the past.
27264
I'm 5'1" and when we initially pumped the ball, I was able to put my feet flat on the floor. However, after a few days the instructions say to add air to the ball for maximum effectiveness. After doing so, my toes barely touch the floor.
1167360
I think you would hit the floor unless you also had something additional like an air mattress between you & the floor. I think they make 4" toppers, maybe that would work!
1680525
Yeah, this going to be too short too. Wish I could tell you different. I'm 6' and there's no way I could use it for that. Sit down option only and honestly I wish it was higher in this mode. Good luck.
1551299
The height of the chair is based upon how much its inflated. You pump the ball up until when your sitting your thighs are parallel to the floor. I am 5'11" and the chair works just fine for me.
1017754
This ball is 30" in diameter when fully inflated. You may inflate it to any diameter up to that size by simply putting in less air. That way it is adjustable to your liking. Thanks for asking!
1360625
17 in's to top of ball, needs to be higher (20-24 in's) would be better. Also the wheels are too small.
426503
Generally speaking, it depends on your height. If you are 6 ft or taller, you should get the 75 cm version. If you are between 5'5" and 6 ft, get the 65 cm, and if you are 5'4" or shorter, get the 55 cm version. That said, I am 6'2" and I have balls in all three sizes as they serve different functions depending on the exercise you are doing.
458988
If necessary you can raise the entire unit 7-8 inches using leg extensions, sold separately for 10 bucks. I did this because I have high ceilings, and it worked like a charm. I really love this piece.
714704
I understand, I worried too. I am 225 and I have room to "grow" on this ball. It is anti burst but does not mean a 900 person can use it either. I recommend staying under 600 lbs. I use it as a chair at my desk and bounce on it freely. It is great exercise, seems silly that I bounce but my legs are weak and I find this very good for strengthening them. 75cm, mean how tall the ball is when fully inflated. It is recommended for a very tall person. I hope this helps you!! Good luck.
1427651
I don't think it would accept full-size basketballs- the ball it comes with is quite small, and light at that. And no, it is not very stable at the higher settings unless you were to fill the base full of sand or water. Even then, it tends to tip at the high settings. But we love this product- my 2 and 5 yr old don't mind the lower settings and even at the lower height (perfect for my 2 yr old), they have a great time with it.