Bought these for my 7 and 10 year old, but have only used it a couple of times because it's summer and being inside those on a hot day is very uncomfortable. We originally bought the ,5 ft and hoped our kids would fit in them that way they won't grow out of the , but the straps very big on them. But even with the 4ft ones the shoulder straps are still not a good fit for kids in these and it's kind of difficult to get kids strapped in. But the short time they have been in the bubbles, they liked them.