Professional Weather Balloon 72 inch/100g For Meteorological Investigation Aerial Video Holiday Party Decoration Entertainment Toys Huge Balloons (72 inch/100g)

Seemed fairly durable for a weather balloon and did not see any noticeable defects in the rubber quality

I bought 3 of these balloons. The material is so thin you can almost see through it when it is not inflated. It is advertised as a 6 foot weather balloon. I filled up the first one to about 4 feet in diameter and realizing it was getting too big to get up the basement stairs, I extremely "gently" tried to press it together enough to take it up a painted drywall staircase and as I started up the stairs, it burst. Couldn't even survive a little squeezing to get it up a 3 1/2 foot wide staircase. So, not wanting to make the same mistake twice, I took the second one outside to fill it up. It didn't even get as big as the first one, when it burst all by itself while being filled up to almost 4 feet. To anyone thinking about wanting a balloon to fly high into the air, SAVE YOUR MONEY, instead of buying this extremely cheaply made item. Not only is it NOT a REAL weather balloon, it is not even a real balloon! Because real balloons can be filled up to at least 80% or 90%, of their rated diameter, many can sometimes be overfilled slightly exceeding their rated diameter, but NOT THESE. THESE ARE TOTAL WASTE OF MONEY and PURE disappointment, not considering the wasted cost of the helium to fill them.

Returned as I had no way to inflate the balloon

What a piece of crap. This balloon will not inflate properly. When we got the balloon inflated, it exploded into a useless pile of later. Save your money.

Don't get this if you're not planning on monitoring your kids while using it. Got it for a friend who said she wanted it for her homeschooled children. She just handed it to them. (5-7) They didn't really have any interest in learning about the weather. They just blew up the balloon and tossed it around until one of the dogs popped it. The other instruments ended up getting destroyed in less than three days.