Balance Ball Standing Desk Chair Stool, Adjustable Jellyfish Chair by Coreseat | Ergonomic Exercise Office Chair That Provides Stability and Core Strength for The Home, Office or Classroom

I’ve only had it for a few days, and already a huge improvement on my back. Like it says, you will be sore at first, but that’s a good sign that the supporting back muscles are getting a workout. I’m actually sleeping through the night, with no wrestless back pain! And, I don’t mind sitting at my desk anymore. It was too tall for my desk- my knees couldn’t cross underneath in the lowest setting, so I grabbed those blocks you use to raise the height of a bed and put them under the legs of my desk. Now it’s perfect. Totally worth the money! Same price as the ergonomic chair I purchased last year with way more versatility and comfort. Also, it naturally encourages me to sit up tall and lengthen my spine, where I find myself hunched, slouched, and compressing my spine in my office chair. If you’re back is getting ruined because you sit for long periods, you are worth the cost of this chair!

I ordered my Coreseat Jellyfish chair a year ago (Sept 2, 2018). Was a great chair and worked as advertised until it started leaking about two months ago. Now it won't hold air for more than a few hours and needs to be re-inflated. I've reached out to Coreseat a few times, no response. Checked Amazon messages, no response through them either. I don't know about you, but I expect a $160 chair to function for more than 10 months.

After a year, the chair no longer holds air. I loved it when it did so I gave it 2 stars. But now that it doesn’t hold air it’s worth less than 1 star. Very disappointed.

I love the chair but it has started to lose air. I have to refill it every day.

I absolutely love this chair. However after about a month it would not hold air. I contacted the seller and a replacement top was sent to me. After a short time, the second started to lose air. My husband decided he was going to try to fix this for me and he did. He said it was losing air around the screw holes where the top is mounted to the bottom stand. He filled the holes with an adhesive sealant. It is holding air and I am very happy with my chair. I have lower back / hip pain when sitting in a regular chair. Using this chair relieves stress on my backside. I really notice a difference.

I got the standing chair to help me while I was working/standing at my computer. Assembly was very easy. Did run into one problem. When I adjusted the seat up for the first time, I accidentally raised it all the way up and then couldn’t get it back down. I sent an email to the seller (Coreseat) who quickly answered my question and provided the solution - it was simple - you have to be seated with your full weight bearing down to adjust the height. One side note - I had major back surgery about 4 months ago, so I was a little worried that when I sat on the chair and to adjust the height, the whole chair might come slamming downward. But to my delight, the chair glided smoothly downward in a very controlled manner. In my opinion, that’s a sign of great construction and excellent quality. I’m extremely happy with my chair and I think it’s going to be a huge help during and after my recovery from surgery.

I loved this seat—really helped me stay alert during long days of editing photos at my computer. Around the same time I raised my desk to make it a standing desk, which also really helped, but I got this chair for when I wanted to take seat. It naturally corrects my posture, and is "fun" to sit or lean on. The chair started leaking about 2.5 months in to owning it, and I have had no reply from the manufacturer (over a week now). I am very disappointed as I don't consider $160 particularly cheap, and it's a total pain in the a** (literally 😂) to have to inflate it once it's sagged down to the hard board beneath the pad. The worst part is that I'm tempted to get another top just because I like it so much, but I will try amazon customer service first.

After only a couple months, the chair doesn't hold it's position anymore. Please help!