You have to inflate them much more than expected and they arent easy to tie once inflated. Once we got the hang of it they were great.
LED lights not only can use in the ballon. It can also use in many different ways. I use in my kids dress. The dress looks perfect at night.
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.