| Children and child outdoor sports helmet | Size: Fits heads52 - 57Cm in circumference. Adjustability: Misfit helmets can fall or move, significantly reducing the helmet's effectiveness. Dialing or self-adjusting systems allow the helmet to be precisely adjusted to fit a child's head and are always preferred. Construction: Young children are rough on their helmets, so durable mold construction is desired. Dinosaur cartoon helmet with pc + eps material, soft and comfortable dinosaur corner, can effectively protect the child's head. Every year in the world, about half a million children are seriously injured in sports-related accidents. In most cases, a properly equipped helmet could have eliminated or minimized head injuries sustained during the accident. Unfortunately, many parents underestimate the importance of helmet fitting and other safety features. choose a safe helmet for your child to protect his healthy growth!