URBNFit Exercise Ball - Yoga Ball in Multiple Sizes for Workout, Pregnancy, Stability - Anti-Burst Swiss Balance Ball w/Quick Pump - Fitness Ball Chair for Office, Home, Gym

I bought a 26' (65cm) blue ball. Inflating it took at least a half hour. I could see when the air put it into a round form, it seemed too small but was pretty firm. After inflating to the point of arm exhaustion the ball only inflated to a bit beyond 24" from a lot of pumping. It was so firm at 20", I was very cautious to add more air but I managed to get it to around 24". I don't know if it would expand to 26" but by the way it was expanding, it obvious would take another 30 minutes of pumping to enlarge to spec.. The more firm the ball, the slower it will continue to expand (pressure is not linear). The box and ball are clearly marked for 65cm. No mistake there. My suggestion to the manufacturer/seller would be to have some more details about pumping up the ball such as how it expands and how firm it should be at full pressure. My worry was it bursting in my face. This is my first ball of this size. We see how it holds up from use.

Bought two of these -- our new granddaughter loves being held as we bounce on them-- and they, indeed are stable and fun. However, minus 1 star because the little pump they include is difficult to use at best (ball #1) and useless (ball #2). We ended up purchasing an assortment of tips to fit on a bicycle pump. One of them worked.

I used a compressor to inflate so it was easy as opposed to the manual pump and ball seems sturdy so far. Size chart is way off. I was looking for same size ball usually found in most gyms which I now believe might be the 75 cm. I ordered the 65 cm based on reviews and went up 1 size from the chart as I am only 5'3" and ball is still too small. I wanted to use it for sit ups and stretching and feel it is too low to the ground.

I needed a birthing ball and this was a great deal. Still 2 months to go but I use it all the time to bounce on after meals or when my back hurts and it provides pain relief in that aspect. I also have rolled on my back to relieve tension and it’s been good for that as well. I don’t have it inflated super firm so it has more bounce and it seems sturdy and the material is comfortable on my skin. My husband inflated it and it didn’t take him a ton of time like other comments said. The tool could be improved to inflate quicker but it really wasn’t a big issue and didn’t take that much time.

It didn't even last 5 minutes.My dog loved this thing! He was so happy when I gave it to him. I even let him unwrap it Christmas morning. He was so upset when it popped. He kept following me around with it as if I could fix it for him. Such a sad Christmas morning for him."I did give it 5 stars because he wasn't using it for its purpose."

There are several very unhelpful reviews that say the ball is too small and to order a size large. These reviewers are wrong and led me to getting a ball much larger than I wanted. I wish that I could down-vote those reviews. Otherwise, the ball seems fine. Have not used it much yet.

Excellent 75 cm / 30 inch ball I am using for physical therapy . My young grandchildren like playing with it as well. Arrived on time, easy enough to inflate with 2 extra plugs. Puller to remove plugs works well. I got the silver which is a nice dark color. It seems to be very well made and should last a long time...

This ball is great quality and durable. It has a nice pump, however it isn’t the easiest to use. It comes with extra plugs and an exercise guide.

We bought 35 of these balls for our office in November and December last year, as they were described as suitable for using as sitting balls. However, less than six months later, five of these have burst. Three burst whilst people were sitting on them, and two burst spontaneously. We followed the instructions and did not overflate them, nor did we sit on them continuously throughout the day.Originally, we were happy with our purchases, as they were as described and arrived punctually. However, they are not durable, nor particularly safe. We have had to ban them from our office, due to the health and safety risk of any more bursting. Luckily, no-one has been injured so far.If someone was to buy one, then I would recommend that they only use it very occasionally and definitely not for sitting / weight-bearing.We spent around £700 on these balls, so unfortunately for us this was a waste of money. Take care when using.

Just received and inflated the gym ball to find multiple defects within its surface! They look like black scratches and mottling so looks old rather than a new unmarked gym ball. Looks like they could be a manufacturing issues. Looks like these could also be seconds sold as perfect gym balls so buyer beware. I suspect the ball isn’t completely round as it wants to travel when placed on the floor in certain positions so be prepared for the extra work out retrieving it!

I recently received my Excercise Ball, I bought the Silver 55 '' size.The looks great, easy to use the pump which is included In the box. Once it's fully inflated, the Excercise Ballseems strong. I already had bought the 45 '' Excercise ball from Urbnfit a few months ago, Which I found to be very good. I find the two balls, great for my home gym workouts.

Unfortunately waited to long to actually blow to ball up before realising it's far to small. I'm 5ft 3 so ordered the 55cm ball however it seems to be tiny, my knees are way up above the level of my hips which is the incorrect posture for use of a birthing ball & I do not have long legs in the slightest, can't contact the seller to see about exchanging or returning. Unfortunate because the ball itself is solid and good quality.

Did the job during my wife's pregnancy. Proper sized ball instead of these tiny ones. Also pump works well.