You know how sometimes your dryer balls can get stuck inside a sleeve or a crease of a sheet in the dryer? Well, when doing my folding and the missing ball pops out I would have a difficult time retrieving it from Ringo & Luna. And when I did well, let’s just say they weren’t happy. So I purchased these. They could be just a bit larger but they love them and don’t have me running after them to give them back.