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 ⭐️⭐️⭐️⭐️⭐️.

The product is OK. I enjoyed using it in my office however it does lose air once in a while and you have to pump it up again.

Good value, easy to use, I would make sure no pets get ahold of it. No smell. I didn't use the foot pump nor my battery operated pump I use for other inflatable air beds or toys. I used an air compressor with a needle sprayer attachment. I found it alittle difficult to inflate to a good maximum with the foot pump.It suggests pumping up 80% then 1 day later pumping to the rest of the volume. It was hard to get the plug out after I did that because the plug is a tapered plastic pin, not a flip top. I would suggest pumping up to the full height volume so you don't go through this. Since a week ago ot has help up fine. I weigh 280 at the moment, so this ball holds me fine as I lose weight.

I’m impressed. I’m about 5 ft 4 in and plus size, but well within the weight limit.The ball feels sturdy. I like the stability base ring.I received a hand pump, and didn’t find it horrible to inflate. I’m not athlete. No leaks, no weird smellBe aware you have to inflate the stability ring. I guess I overlooked that part. Not a deal breaker. It keeps the ball from moving around. Easy to inflate.I bought the ball to do seated Tai Chi exercises for rehabilitation. I think it will work well for that. I’m already using it as a general chair. It’s comfortable. Zero complaints.

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.

The ball and base were super easy to inflate with the included pump. It came with a few extra plugs in case the other ones get lost. The material feels very thick and sturdy, and the aqua color is bright and happy.I have mild scoliosis and a stenosis at L5 which is just above the tail bone. Every now and then it will get inflamed and cause lower back pain. When I tell you the MOMENT I sat on this ball the back pain disappeared, I am not exaggerating. I am going to get another one so I can have them in both my home and work offices.I am just over 5'5" so got the 65 cm ball. It feels ergonomic to sit on, but I am wondering if the taller one would have been slightly better to reach the keyboard on top of the desk. I'll probably wait a few days to inflate it a little more (per the instructions to give it time to stretch) and see how comfortable I am with the height before ordering another one.Edit: It is now fully inflated, and it is the perfect size for my height with a keyboard that sits at 29-30"