"The Bell Sports Raskullz Tri-Flowertops Bike Helmet for Babies features the fun graphics your little rider will love and the protection you demand. A dial system ensures a proper fit, and the flat back enhances comfort. A speckled foam interior pairs with cute dinosaur flower graphics for a look your youngster will love. Built-in vents keep them cool. This Bell bike helmet is recommended for ages 13 and fits heads between 18.9""20.5"". Complies with the US CPSC safety standard for bicycle helmets for ages 1 and older.Manufacturer model #: 7160704. Dial system for a perfect fit Fun dinosaur flower graphics Speckled foam interior Built-in cooling vents"