I've seen things similar to these but they are so expensive to buy. So I came up with my own version. The idea is to have something your kids can hold onto when you need your hands for something else so they don't wander off. We've used them a few times and they work pretty well. I'm glad I didn't spend the big bucks to buy any though because we don't use them very often. It has been nice at amusement parks, zoos, and other big crowded places like that.