Specifications:BrandFEIYUNameChildren's helmetColorBlue, magentaMaterialInterior: Expanded polystyrene (EPS); Shell: polycarbonate;TieNylon, ABSWeight200gHead circumferenceS: 50-54cm M: 54-58cmStorage suggestionDo not store in high temperature (max. 60 ° C), dry place, away from ultravioletNursing s..