These multifunctional toy rings are your new favorite helpers. You can make a chain, for example, to attach a book to a cart. Or hang your child's favorite toy on the car seat or stroller. There are many ways to use these handy little loops. Be creative and experience for yourself how practical these tires are. The tires are made of polypropylene (PP) without hazardous substances. This makes these toy rings safe for your child to play with. They may look simple, but your child is sure to have fun with Little Loops. There are 12 tires in the package and it's just enough to get from one side of the cart to the other.