For thrill seekers, the Raskullz Mohawk Helmet is lined with polystyrene foam to cushion impact during MTB runs.Recommended for riders 5-8 years old, but will fit anyone with a head measuring 50-54 cmAdjustable StrapsImpact Liner Type - Expanded Polystyrene FoamShell Type - PVC ShellVentilation Type - Aerodynamic Cooling VentsBolt LEDThe Raskullz Bolt LED Fit System helmet has a light-up 3D fin hawk! Five LED lights illuminate the rubber mohawk with a steady light or flashing sequence.The lights are activated by a button located on the back of the helmet and will automatically turn off if left on.Flying AceThe Raskullz Flying Ace Fit System helmet is outta control. This helmet features a shield that can be worn up or down and has a sleek, easy-to-use fit system that offers an adjustable, secure fit with a quick turn of the dial, and amazing fighter jet pilot graphics.