"Few things are as fun as barreling down the ol' sledding hill, but the fun does come with some risk. Protect your child's head with this handy adjustable sledding helmet. It covers the key areas and the integrated earflaps also provide the valuable service of keeping a child's ears warm. Dimensions L x W x H in. 8 x 9 1/2 x 11 1/2, Material Type High-impact material w/metallic finish, Recommended Ages years 6-12. Adjustable Polystyrene liner Includes a padded chin strap to ensure a proper fit"