At first I thought these balloons would not go any farther than about 10in while keeping a flat orb balloon shape. I was pissed. The directions said to stretch it, and I did that. I was ready to return it. But then, I stretched the edges bit by bit and tried it again. SUCCESS. It actually got larger than I expected. I plan to put other balloons inside.The balloons for this review are just the bubble balloons in the picture. I blew them up slowly using an electric pump To stretch them out, deflated them, and then filled them with confetti. The next morning, I filled them up with helium. I used small rubber bands to tie them. I only needed 8 and none of the 8 popped! I’m pretty happy with them. The helium only really stayed in for that day, the the next morning, the balloons didn’t float but they served their purpose.Becareful with How big you blow it up lol because of the stickers I had one pop kinda hard to fill butbits funSe des inflan solosTried these for the first time in 20in sizes but all 5 have deflated over a period of time short as a few hours! and ive never had an issue with the 18inch bobos before. Really upset on a waste of money. Tried the rest and they didnt hold up as expected.I just love them, with confetti, paint or plain they are a very nice deco for any party.Everyone liked them and ask where I bought themGreat. Maje sure you stretch it as much as you can.Not the best quality, I stretched it a couple times and it popped before it got to its full extent. I tried it again and it popped easily once again