Great material, sort easy to inflate. Would recommend using a machine, i inflated one to its max until it popped so I can see hire big they can very and it inflated to about 16 inches. I would recommend buying the clips to fasten the ends making a knot is hard and can deflate and hard to undo.
It's very thick, the light is very bright. I would say the quality is very good. My roommate and I like it so much because the balloons are so pretty, especially at night. The only thing is we can't use mouth to blow up the balloons, we have to borrow a tool from my friend. Other than that, everything it's perfect.
OK so two popped besides that theres no way that these are not a hit at a party everyone went home with one you just need batteries go and buy it