But before you invest in a ball pit for kids, there are a few things you must keep in mind: Make sure your child can sit up on her own before using it. Unless you have tons of floor space, you’ll want a ball pit that folds up and keeps the balls contained. And you want balls you can clean. The reason for that shouldn’t need any further explanation. Every product on Fatherly is independently selected by our editors, writers, and experts. If you click a link on our site and buy something, we may earn an affiliate commission.