Safety first - but always in style with the Konges Sløjd bicycle helmet. Our helmet features practical size adjustment with easy grip, a vizor for sun protection, and extra visibility with reflexes. Designed with removable padding inside, ventilation holes, and an classic buckle to keep it in place. Ideal for both cyclists, skateboarders, kids' scooters, and roller skaters. Size S/M= 47-51 CM (2-4Y) Size M/L= 51-55 CM (4-8Y) Materials: Outer shell: ABS EPS: EPS Buckle: /Button: POM Webbing: PP O ring: Silicone Adjuster bottom: PA Adjuster: POM Pads: Velvet + sponge foam Iron nail: Iron Children must take off the helmet before entering a playground. WARNING!