Trideer Exercise Ball for Office Desk, Yoga Ball Chair to Relieve Back Pain, Stability & Fitness Ball Seat with Base, Home Gym Core Workout, Abs, Stretching & Therapy

I’m a huge fan of my Trider exercise balls. I’ve purchased atleast 4 in the last 20 years! Extremely durable & reliable. Every single one has lasted for atleast 5 years with daily use. My father is recovering from back surgery unable to walk without a cane due to nerve impingement. He goes to PT 3x a week. When I flew home to help him with his recovery, I instantly purchased this one & sent to arrive on the day I got off the flight. I wanted to use it while I was there to show him some stretches and exercises and loved that this one came with the stability ring for safety. Let me tell you, with the ring in place, it’s not going anywhere. Happy to report his Physical Therapist showed him some exercises to do with it and he sues it daily now without fear that he will fall off!

I pulled it out of the box and gave the included little hand pump a try. Holy cow. That was a workout! Both arms were tired and if you stop, the air back- flows. No thanks. I'll save that for inflating balloons. I broke out an air compressor and filled the ball until it looked taught, but not over-filled. I let it sit overnight. The next day I gave it a sit and felt entirely too low to the ground. I put a little more air in it, but was worried about how much air it could take. I have it another sit and it felt much better... so I worked a full day on it. I had to keep reminding myself to straighten up my back. It takes some getting used to. You certainly can't whirl around to see behind you, like you would in a typical office chair... so when I heard my dog outside the door, I had to twist and crane my neck. LOL. After a day on it I decided it still felt a little low for me. I'm 5'6" tall, with a 28.5" desk, so I got the Large 65cm ball as suggested. I broke down and grabbed the instructions, to make sure I didn't over-inflate it. I measured from the floor, up the wall 65cm, made a pencil mark, then took a straight edge and held it out... I definitely had more room to go to inflate it... and I did! It's at about 63cm now, because I don't like to press my luck. I'm up at a good height now, comfortably resting my forearms on the desk, the keyboard is comfortable and I can still put both feet firmly on the floor. I put the ring under the bottom because I don't want to accidentally bust my ashtabula on this thing. It's comfortable. I can work a very full 12 hr day on it. I push it up so 40% of it is under the desk, and I approach it from the side and swing my leg over it like a horse, then plop my arse down. It's sturdy, has a little bouncy bounce to it, but only when you shift your weight or adjust your legs. It retains air well, so far. Another nice thing is that you can grab ahold of the front of your desk, lift your feet up in front of you, and roll forward while arching your back, until your basically laying on your back, over the ball. It gives a great stretch. Overall, I give it ⭐️⭐️⭐️⭐️⭐️.

I've had this for a couple of years; when I first got it, put it together and used it for a week or two, and then put it aside and never got back to it until recently. The ball itself is fine; naturally, it does lose air over time. When I returned to using it recently, I had to put more air in. The plugs are pretty hard (very hard, perhaps?) to get out... it's a very good thing I didn't lose the little tool. The weakest part of this is the inflator - I have had the hose pop out at the hose pump by just using it. The other end (that one puts into the ball or ring) is two-parted, and came apart, losing air. The pumping up system could use to be improved. Except for the inflation thing, the ball seems pretty solid and sturdy and does its job. I tend to set too far forward on the ball (maybe I'm afraid of going over backwards), so it feels like it's tipping me forward a lot... I usually have to adjust 2-3 times until I get it right. I assume it's doing what it says... after using it, I can feel my core muscles.my core muscles are

Updating review from 3 to 5 star: The company helped with getting me the extra large and it is perfect. Works great, helps keep my posture perfect. And good for stretching while sitting at my desk and working. The ball itself is great. However, per the measurement for a desk it stated the large would be a fit. But I definitely need the extra large so I can sit a little higher.

As advertised, good product

I purchased the smaller size to use as a moveable chair (I'm 5'2, 200 lbs) - I have a walking pad/treadmill under my desk so that I can walk while I work, but I wanted something that I could also use as a chair that I could place on top of it that wouldn't damage the walking pad. This fits the bill, but following the size guide left me unhappy. The smaller size - even with the extra height from the walking pad - is just a bit too short for me to comfortably work at my desk. I've purchased the larger size as a replacement and am hopeful that it will work better, but I'm concerned it might be too big for the space. Will have to wait and see.

Inflation is a struggle. Would be better with needle style inflation.

Works great as a chair replacement for my adjustable height desk. The rubber ring at the bottom works very well to prevent you from rolling or falling off when sitting down or getting up. Retains are pressure well, a periodic pump now and then is required to keep it stiff.

I use this as a seat at my desk. It has caused me to sit correctly, plus it is just SO easy to exercise your hips and core whilst working. I am sure it can be used for many other exercises, but haven’t discovered them yet. Wouldn’t be without it!

Der Ball wird mit einer Pumpe geliefert - man muss zwar erst rausfinden, welches der beiden Pumpenenden hier Luft saugt und welche bläst, aber das hat man schnell rausgefunden. Der Ball hält die Luft sehr gut drin und der Standring ist ideal für die Aufbewahrung. Rundum: Klasse Gymnastikball.

It's pity there is only black colour, so I had to order another one from Amazon US.

Sit on it daily. It does encourage you to slouch to focus on not slouching.

Der Ball hat unschöne Falten. Er ist seit Donnerstag aufgepumpt und würde nochmal nachgefüllt. Aber die Falten gehen nicht weg. Der Äquator ist weder Beim Ball als auch bei dem Ring nicht schön verarbeitet. Widerstandsbänder wurden keine mitgeliefert.