GYMNIC Hop 66

I have a hop 55 that I got as a gift from a friend. Last year I bought a trampoline for my living room because my son was driving me nuts jumping up and down in one place for hours on end. It was a huge hit, and somehow the hop 55 that was in the basement made its way upstairs and I like that all of my kids like to sit on it while watching tv or playing games, but they fought like cats and dogs so I bought a new hopper - and saw the bigger size so I thought I'd give it a try. Plus it claimed to hold 300 lbs which means I could sit on it too! But alas the box says it only holds 200 lbs, which rules out a lot of adult men, and it seems like those are the only kind of adults that are drawn to this thing like a moth to a flame. But regardless they get a lot of use inside my house, no idea how it would last outdoors. It does seem to lose air and have to be pumped up about once a month, but it gets CONSTANT use. Unlike the smaller one I have, the inflation hole/plug is on the bottom (the other one we have, it's in the handle) These are good for sitting or hopping with the handle.. the handle does limit it a bit as far as rolling around on it, but sometimes I think it keeps them from totally falling off. I have had regular exercise balls as well. My older kids seem to prefer the smaller 55, they are typically sized 8 and 9 year olds. The rubber is thick and substantial and I really have nothing negative to say. No catastrophic popping and no handle issues.

I'm 5'4" and it fits me fine. However, my friend who is 5'2" and almost 200 pounds felt that this ball was too small for him. I think it was his weight. He said when he bounced on it, his knees when up to high so it kind of hurt. Other than that, it's very durable and it has remained fully inflated since Christmas time! One note, it's not as easy to use as you think! Well, maybe it's just that we're not kids anymore!

My 7 year old granddaughter plays on this same bouncer in the gym at school, so I bought this one to give her some indoor activity at home. You do need a large area to really enjoy it. She bounces back and forth the length of the living room, but I have to keep reminding her to tone it done a little. It's a great toy,

Love this bouncy ball! My kid is a very active 7 years old, 52" height(63lb) which is taller for the age(more between 8-10 year old) and has average leg length. I had super hard time choosing a right size ball because previously I ordered smaller one and it was too small to jump around and knees were bending. This size you can inflate not too much then it will bound well and not too much, and will be a good use for at least 2-3 years, especially when you think of the pose for bouncing, the kid need to sit bit forward in terms of not to fall to back. I did thorough research and this one is particularly a very good one. Good sensory work for any kids and they can bounce, roll it around for their fine motor excercise.....etc. Lots of things kid can do!

We got 2 of these back in Dec. of 2010 for our Grandson's Birthday's. They are Great! Durable! We used them at one of there Birthday party's for a group of kids and everyone loved them including the Adults. Great Exercise by the way. We used them again at a large BBQ with lots of people out side on grass, not one problem. Be prpared for the boys to bop each other with them. We did find them much cheeper at [...] becaise I wanted enough for a group. These are much cheeper quality than the one's on Amazon, but they did the trick just fine. The Adults loved them too. We bought the quality ones for the gifts but the others so we had enough for a group play. It just depends on the quality you are looking for but they are both great! I would completly recomend them. Be prpared to buy a pump. I though it should be included for the price & it was if you bought a group box at jumping balls but not with Amazon. Have Fun!

We bought this for our 12 year old for his birthday, and he has barely gotten off it since! He sits on it at his desk when he does homework or plays his games. And now I'm considering buying three or four for a party, and for his 16 year old sister. Also, it's of high quality thick plastic, and nice handle design.Excellent buy!UPDATED 3/23/2013My son still loves bouncing around on his Gymnic ball. The only problem we've had with it is the handle breaking clean in the middle, leaving two disconnected sides. We used duct tape to repair it, but he eventually pulled it off and is living with the broken handle. So far, the ball itself is going strong. Probably needs to be cleaned, but that's it.He also uses it to sit at his computer, so his posture and legs (from bouncing so much!) have gotten much better.

I have a 19 inch tall yoga ball that's very bouncy and I sat on this and it barely moves in comparison. And it's tiny. 66 cm is supposed to be 25 inches but i measured how tall it was once inflated and it was 18 inches tall sooo way too small for an actual adult. It has a weird sweet smell I wasnt a fan of. I do appreciate they are made without phthalates but ultimately this was a bust and an expensive one at that.

This is the adult size. I am 5'9" and 50 lbs. overweight and this size is good. I use it to sit at my computer at home and it is much sturdier than the balance balls you find in the gyms. In fact, I find it much more versatile than the gym balls. You can do a lot more with it. You can inflate it by hand (pump sold separately, I think) and it is not so hard or you may be able to use a bicycle pump (not sure about this.) Once the plug is in, it does not loose air. I have 4 cats and only once did they puncture it, but that was during an extremely rare cat fight. They do not play with this or show any interest in it at all. I mention this because previous to this product, I tried the gym balance balls - twice. Each time the cats played with it and punctured it.