Good balloons, and they hold at least 7 8gm n2o cartridges. They will actually hold more, but 20 into one balloon continuous put my dick in the dirt and when I realized what was happening I was sitting there with an empty balloon in my hand and a fuzzy satisfied feeling (for about 90 seconds)IDK if I actually got it all, but I sure got enough for those seconds, If you are just buying balloons to be balloons then look at the next review, if it's just personal, buy a whip cream dispenser. If it's a small party, these will work. I'm about to go but a big tank, and paint it green so my wife can wheel me around in a chair while I wah wah and laugh from wake to sleep. But that's just me.These are a little pricey for balloons (especially when you can get 50 for $1 at the dollar store) but they are nowhere as big as these bad boys are. Blown up, these are about the size of a small bean bag chair. If you are going to have kids and have a big enough area inside (or outside if there is no wind) then these will be a big hit. HINT: blow them up once, let the air out and blow them up again for larger balloons. These balloons lasted about 2 weeks before I finally got tired of them and secretly popped them one day while my son was gone. :) Either he didn't miss them or didn't care because he didn't say anything about it.Great beautiful LARGE round balloons! The pink we got was a bit of a darker shade compared to the online picture but the quality did not disappoint! My only concern is that I blew up two balloons the day before the party, and by the next morning, you can definitely tell some air (helium) escaped. It was probably a 'normal process', but I would recommend blowing these up the day of the party if you can, or else air may escape. But I would definitely repurchase again!Massive, brightly colored balloons. Very nice heavy latex -- lasted for weeks.No bad ones in our package but be warned... these are MASSIVE and we could only blow one up per night because of the effort, even with a hand pump, so I'd highly recommend an electric pump. And though we didn't try it I can easily see how they might be too heavy and require too much helium to float.But if you want really big balloons, then that's what you'll get and they were a great hit here.My 3 year old loves these and I do too.PROS: They have more stretch and rubbery texture compared to your average balloon. It almost feels like a ball because when you hit it, it goes in the direction you want. The balloon lasts several days indoor and may last about an hour outdoors depending on the use and abuse given, haha.CONS: if you under-inflate them, they look more egg shaped than round and the weight is not evenly distributed so it will travel in unpredictable directions when you hit it.Worked perfectly!! Lasted over a week. We filled them with an at home helium tank. It takes a lot of helium but worth it for the effect. Used for an IT chapter 2 party.Used these to make a giant pokeball costume. It was a hit! We paper mached about 5 layers. Protip: Don't do this outside or anywhere that the temperature fluxuates too much as the balloon under the paper and glue will shrink and expand, compromising the integrity of the ball. But we had so much fun with the rest of them. We blew them up with the reverse end of a shop vacuum. My kids are begging me to buy more of them already.These balloons were great. Good quality and the perfect touch for a first birthday. Inflated at Publix for about $2 each. Gave 4 stars instead of 5 because one balloon arrived with a pinhole in it, and my balloon package was opened prior to me opening the main package.Absolutely brilliant and huge! Everyone loved it! We used them for our daughter furst birthday party ? and all children loved to chase it around, throw it and trying to catch it even more fun as due to the size not easy for little ones to keep ?. Great fun, looking beautiful and quite sturdy considering this is still a baloon. Little tip though - use blower as pumping it yourself maybe a bit tiresome ? but either way it would be worth it. Highly recommended for a bit more special look decor & feature. If you try to picture the size, depending on how big you’ll blow it, you may have trouble fitting it through the door so perhaps blow it in the space you intent for it ?Rubbish quality . I use premium helium from an industry supplier and the first balloon wouldn’t stay up , tried hi float with the rest and they all failed . Shame because they were the prefect size and colour .These were great fun at my daughters 3rd birthday party! Absolutely huge, like an exercise ball, and looked great. We had 2 pop during the 3 hour party, but they were literally played with, bounced on, thrown, and generally abused by 12 children for the entire time, so that was expected. I also may have slightly overinflated a couple of them, but it was quite tricky to tell as they are so large. Would highly recommend these. Also, I used an air bed pump to inflate them, as I can imagine a manual pump or blowing with breath would take a while!Delivered in perfect condition & on time. These lovely giant balloons were a favourite feature at my child's 'Titanic' themed pool party (icebergs) They produced a great amount of bounce in & out of the pool providing heaps of fun - best purchase! I recommend a pump for inflation though, unless you possess giant lungs!