Gaiam Balance Disc Wobble Cushion Stability Core Trainer for Home or Office Desk Chair & Kids Alternative Classroom Sensory Wiggle Seat

I just unboxed it. It did have some kind of light residue on it and a slight smell (saw the smell with some other reviews). I don't think this was a return or that it was used, I think it was just part of the manufacturing process. I took a rag and some cleaner and just wiped it down and both the slight odor and residue were gone. I would generally do this with things I buy anyway, it reminded me of the way some rubber or plastic balls have been when I purchased them in store before so I really think it's just part of the manufacturing process and not an issue. It appears partially deflated but I believe that is on purpose. The instructions that come with it say it's ready to go, so try it out that way for a week or so before you mess with the inflation. Immediately upon sitting on this in my leather office chair, I noticed it forces me to sit upright and not slouch which was one of the main reasons I got this, so success! I am also hopeful that it will work out some of these muscles that don't get a lot of use as a side benefit. It also feels comfortable to sit on. I can lean to the left or right, or wherever and feel movement and my body adjusting, so I think this is going to work great! I'll update this review if anything changes, I'm loving it so far and I think you will too! Just wipe it down when you get it, and leave it alone, try it for a week before you make any changes and go from there!

Great product and does help stabilize your core and posture. Only downside is there was some weird blue liquid dried on the wobble cushion - I wiped it off and sanitized but no idea where it came from other than possibly the item was previously used? Everything else seemed new about it. It was partially deflated so added a little air and it is perfect. Otherwise a great buy and very tough durable material so it should last a long time.

So I'll start off by saying that I ordered two. Both came in a satisfactory amount of time and in good condition. They come with inflation needles. Sometimes when a thing with air in it travels in differing weather temperatures, it can deflate a little - or appear that way, at least. I'm grateful for the needles so I don't have to look for one in the future. That was thoughtful.Now for what I needed them for:I have ADHD. I wiggle ALOT. I am often uncomfortable sitting down for long periods of time. Alas, a lot of my hobbies and some of my sparse income relies on sitting. I'm an artist, a reader, a gamer, sometimes writer, etc. If I somehow am able focus to sit still for a long period of time, I will ignore aching limbs and wind up in a lot of pain when I finally get up. I get crazy muscle tension from any amount of stress, so being able to wiggle my hips in my seat is a BOON!I suspect my son also has ADHD. His limbs go everywhere. Knocking over stuff, precariously tipping his seat (I know most kids do this, but this kid is excessive, much like me). The wiggle seat allows him to do smaller movements, which I try to encourage instead of saying "sit still", and therefore preventing potential catastrophes from occurring - like bonked nuggets and broken action figure models he worked so hard on making.It's almost like sitting on an exercise ball. I like it. All the thumbs up.

Gaima has AWFUL practices. Let's start with the fact that I received a clearly used product that you are supposed to sit on. Bottom is worn, the inflation opening is scratched around the surface and the product arrived pretty heavily deflated. It seems pretty clear that somebody got the product, used it, didn't like it and returned it and Gaima then sent it to me. Extremely poor form.So, my product looks nothing like the picture because it arrive so deflated I could touch the top to the bottom. I pulled out my foot pump, attached the needle (which only by sheer persistence worked because I had to keep putting it back in the hose) and performed CPR on the pump for about 20 minutes. There must be another dimension houses within the ball because air was going out of the pump, it wasn't leaking out of the ball or the hose and the ball didn't inflate one bit. I chalked it up to being defective and tosses it back in the box with the idea in mind of returning it.Well, I bought the ball as part of a total-body physical therapy measure to both help me regain strength after my last surgery and to help me recover from my next surgery. I was farting around with some resistance bands I had and trying different exercises from different angles and I was having a rough time getting full range of motion on some quad and hip exercises because my legs were just a bit too long. I broke out the ball, plopped in on the chair and sat down. I'm not very heavy and I'm not very tall- 5'9" and 170 pounds. When I sat on the ball the air pressure caused by my weight caused it to raise in height several inches and straightened my back, extended my stomach and raised my knees so my thighs were parallel to the ground and my feet were flat. I instantly felt sore in my lower back and lower abdomen. It was working EXACTLY as it was supposed to.Curious, I then took it to my office chair, where I couldn't touch my heels to the ground unless I sat on the very front of the seat (which then causes me to slouch as my back rounds out to accommodate the downward slope of the seat) and puts pressure on my lower thighs (which hurts my knees because it causes my heels to hang). I plopped the ball down in my chair and sat on it. Again- spine goes straight, knees come up, thighs parallel to the ground, feet flat on the floor. Soreness in my lower back and lower core.Gaima's business practices aside, this thing works PERFECTLY. Give it an honest shot. I can't speak to how well it will work for much taller or shorter or much heavier people, but the ball I got is exactly the dimension I needed. Don't toss it before trying it, even if it looks lousy when you get it.Three stars because it works. Minus one for the condition it came in and the non-function of the inflation aspect and minus one for the fact Gaima clearly sent me a ball someone returned.