4PCS Avengers Superhero Balloon Birthday Party Supplies 18" Foil Balloons for Kids Baby Shower Birthday Party Decorations

I should have read the comments prior to purchase, but I really didn’t think you could mess up Mylar balloons. Only 2 of the 4 balloons floated when they were inflated. Apparently the balloon isn’t large enough to accommodate the amount of helium needed to overcome the weight of the Mylar. I know that sounds crazy but it’s true. The balloons were filled completely and immediately fell to the ground. I originally thought maybe the helium was going out in the tank, but the store had some of their own Mylar balloons in the avenger theme so I substituted with theirs and they quickly floated so the helium concern was erased. Unless you have a bunch of latex balloons to attach this to, then you are taking a risk. Also, these balloons are a bit on the small size. Their dimensions are not correct. The length dimension is spot on with 16.5” but the width is 10”, not the 14.5” advertised. A traditional Mylar balloon is 18” round so you can use that as a reference. They do look nice inflated (if they float), but sadly that wasn’t the case for us.

I purchased two orders of these (in total 8). The very first balloon (spider-man) we had blown up had a huge hole. We tried taping that hole but then found out there was ANOTHER hole. It wasn't done by me I can assure you. Because I literally opened the package (no scissors or knife were used, just my hands) and went directly to the helium tank. The second balloon (captain America) didn't even fly. So, even though we can clearly see that there was enough helium we tried to apply a tad bit more and then it exploded. The third balloon finally worked, but the fourth one, again, did not even fly and it had more than plenty of helium in it. In total of 8 balloons I only had four that were semi "ok". It is a complete mystery to me on why these did not stay floating in the air with helium, but they sure didn't. I was beyond irritated. I will not purchase from them again.

No idea what’s wrong with them. You inflate them and they shoot off to the ceiling, fine. You tie a string to them and a weight and it doesn’t just pull it to a cute floating level the entire balloon lays on the floor. What?! Also they are tiny. Don’t bother

These were super durable. Even when the kids were kicking them around after the party, they still held up. If I can note anything, it would have been useful to provide a little straw to blow it up. Luckily we had a straw laying around. Other than that, it's a great purchase.

Got these for my daughter's birthday party...Took them to party city to have them inflate them .... They didnt even Captain America and Hulk dropped to the ground and Iron Man and Sipderman where floating somewhat... with in 12hours the ballons had deflated so much...I use to work at Party City...I know mylars hold air for ATLEAST 24hours ... The fact that after 12hours they had lost alot was crazy to me...100% not worth the money... My daughter is highly disappointed that the ballons looked like crap come time for her party.

I would leave no stars if I could...when I inflated the balloons with helium they didn’t float at all. I had to tie them to 5 latex balloons to get them to float and then the superhero would float downward & then turn upside down. I had no time to go buy new ones for my sons 5th birthday.

Awesome! I added these to a balloon tower and it added the perfect touch! My birthday boy loved them, and the. They played with them all day.

Did not hold air. Took to be filled. 1 hpur later 2 were on the floor. Nectar day the other two were too.