Our kid helmet is made of polycarbonate and USA imported Expanded Polystyrene, people could print any kind of design and pictures on the polycarbonate shells.
Three size, XS, S in total, especially designed for one to ten years old children.
XS 48-54cm for 1-3 years old
S 52-56cm for 3-7 years old
This helmet is past EN 1078 certificate and could used for cycling.