Pull Back Cars: Ride into fun with 3 small and friendly toy cars - just pull back and watch 'em go! Includes: ... Easy Play: Simply pull the vehicles back and release them to self-propel. These cars are fully kid-powered! Developmental Toys: Playing with the Mini Wheeee-ls! sparks creativity and improves fine motor skills. Age: These toy vehicles are recommended for toddlers 12 months +