Ask a bike shop representative for help in choosing appropriate materials. Clean the helmet with gentle soap and warm water only. Do not use solvents or chemical cleansers. These, too, can damage the helmet's effectiveness. Treat the helmet with care.
Abuse can damage it.
So encourage your child not to waste the helmet's strength by tossing or kicking it around. Replace the helmet routinely as your child grows and immediately after a crash. A helmet's protective lining will wear out, especially following a crash. Almost all serious wheel-related collisions happen when a child breaks the rules of the road. Under the age of 9, children on wheels usually are not developmentally aware of all the hazards facing them and should not be allowed to ride in the street.