My foil balloons are sealed so I can't fill them. And I had to assemble the banner. The birthday is today. Looks like I have to get clever with these foil balloons. Kind of an inconvenienceThe foil balloons had holes in them before we even got to try and fill them up which was a hug disappointment especially for the price of everything, the cost of this pack was not worth it at allWhen I put the air in my foil sonic he broke, the other ballons would not hold the air. The foil sonic wouldn't float and we had helium in them. All that ballons had helium. I wouldn't purchase again.Dislike . Description says 20 latex balloons and I didn’t receive one!!! Also, description says no need to assemble but sends string and a needle to assemble the happy birthday sign.The balloons blew up great and held a lot of air without popping or anything! The only thing I didn't like is that the string was hard to get into the larger Sonic balloons.