Does this ball have sand or weight in it to keep it in place? I want to use it for a desk chair at work and to not want it rolling away when I stand.
211631
No, it does not have any sand or weight in it. I don't think it would roll very far, unless you are on a very uneven surface. Just push it under your desk like you would a chair.
211632
I use this ball at work, and rolling away when I stand up is not an issue. Some of my coworkers have added sand, but the majority have not.
2192311
it is made of plastic, it will feel sticky. pay attention to the exercise not the feel of the ball.
339662
This ball is made from a very durable vinyl. It is slightly tacky for better body contact. NOT sticky...it is just not smooth. It also has ridges that also help to keep your body stable.
357499
It's kept it's shape. I put an extra pillow on the side to keep the arms from falling off. It also helps so I can't roll off
1017799
I use this ball for working at my computer. It functions well for me in this capacity. I have back/neck problems from herniated discs and this is far more comfortable for me than a conventional chair. I do not have a desk job so I'm not sitting on the ball for 8 hours a day. Just make sure you can inflate the ball to a comfortable height for your desk. The exercise height may be different than your desk height. I have the 65 cm ball and am considering ordering a 55 so that it might be slightly firmer when I inflate it to the correct height for my desk. I would like to inflate the 65 a bit more to be firmer, but then I would be sitting too tall for my desk. Overall, it is still my favorite desk chair. I use this ball for working at my computer. It functions well for me in this capacity. I have back/neck problems from herniated discs and this is far more comfortable for me than a conventional chair. I do not have a desk job so I'm not sitting on the ball for 8 hours a day. Just make sure you can inflate the ball to a comfortable height for your desk. The exercise height may be different than your desk height. I have the 65 cm ball and am considering ordering a 55 so that it might be slightly firmer when I inflate it to the correct height for my desk. I would like to inflate the 65 a bit... » Read More I use this ball for working at my computer. It functions well for me in this capacity. I have back/neck problems from herniated discs and this is far more comfortable for me than a conventional chair. I do not have a desk job so I'm not sitting on the ball for 8 hours a day. Just make sure you can inflate the ball to a comfortable height for your desk. The exercise height may be different than your desk height. I have the 65 cm ball and am considering ordering a 55 so that it might be slightly firmer when I inflate it to the correct height for my desk. I would like to inflate the 65 a bit more to be firmer, but then I would be sitting too tall for my desk. Overall, it is still my favorite desk chair. « Show Less
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.
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.
2272911
The ball is made of a vinyl. Feel is very similar to a regular beach ball, but it is a heavier gauge material.
129184
No. This ball does not have sand in it. It actually comes flat and you have to blow it up yourself.
608697
Not really. I you're purpose is to use the ball at a desk, it will likely be too low and you will have to purchase a special structure that is specifically available for use with stability balls. Otherwise a 75cm is a big ball. How tall are you? Are you sure you've filled it completely?
1522242
None, it works by gravity. There is a slight elevation which makes the ball roll back to you.
1216138
Yes, it is,when I bought it looks nice ball, but it's not resistance material to play ,I did bought one and is wrepped off, already. So god lucky
226019
The ball may have a tear/might be damaged. Lift the ball up out of the box. If the sand flows from it then return! The sand actually supports/weighs down the ball so it doesn't slide/wobble all over the place. Good luck.
266495
Sand will make it heavier....with water, it moves around a bit when i punch it. but sand should make it a lot tuffer to push around...Also i believe emptying the sand off the base is going to be tuffer than emptying water off the base....
663846
The ball is like a heavy wiffle ball. It would not bounce well on grass. Unless you live in the desert, a yard will be too soft. We play in the street by our house.
1623598
no but because of the material its made of, it doesn't move/slide around. i found it to be pretty sturdy.
961508
I feel it should work. My office chair is pretty big and weighs roughly 30 lbs...I take that back. I didn't want to give you misinformation so I decided to actually weigh it for myself... Turns out my office chair weighs in between 46-47lbs, I couldn't believe it! I knew it was heavy, but not THAT heavy. LOL! I sit and roll around on it daily for hours at a time. Never heard it crackle or felt like it was going to buckle.Keep in mind- I weigh 140lbs and usually sit on it with my 2 year old that weighs roughly 25lbs (last time I checked)I've had the mat for several months now and it sits on carpet of a decent thickness. It's not plush but it's not low pile either.Hope I answered your question.All the bestB. I feel it should work. My office chair is pretty big and weighs roughly 30 lbs...I take that back. I didn't want to give you misinformation so I decided to actually weigh it for myself... Turns out my office chair weighs in between 46-47lbs, I couldn't believe it! I knew it was heavy, but not THAT heavy. LOL! I sit and roll around on it daily for hours at a time. Never heard it crackle or felt like it was going to buckle.Keep in mind- I weigh 140lbs and usually sit on it with my 2 year old that weighs roughly 25lbs (last time I checked)I've had the mat for several... » Read More I feel it should work. My office chair is pretty big and weighs roughly 30 lbs...I take that back. I didn't want to give you misinformation so I decided to actually weigh it for myself... Turns out my office chair weighs in between 46-47lbs, I couldn't believe it! I knew it was heavy, but not THAT heavy. LOL! I sit and roll around on it daily for hours at a time. Never heard it crackle or felt like it was going to buckle.Keep in mind- I weigh 140lbs and usually sit on it with my 2 year old that weighs roughly 25lbs (last time I checked)I've had the mat for several months now and it sits on carpet of a decent thickness. It's not plush but it's not low pile either.Hope I answered your question.All the bestB. « Show Less