The Cat in the Hat knows a lot about that.  What, you ask?  This Cat in the Hat Stroller Toy is made from natural cotton that is unprocessed, untreated, and unbleached.  Perfectly safe for your little one to chew and snuggle. It has a handy strap to attach to a car seat or stroller, and has a rattle inside that entertains as Cat in the Hat bounces up and down.