No-pinch Magnetic Buckle Adjustable Spin dial for individual fit Scooter and bike approved Australian Standard Certified AS/NZS 2008:2063+A1:2009 Baby, toddler & kids helmets Designed for maximum safety for scooter, bike and skate riders. With an adjustable spin dial and extra padding. Micro kids helmets are engineered for an ergonomic fit. The magnetic buckle makes safety even easier – simply locking into place in one go. Adjustable straps and air vents keep heads cool ensuring comfort comes with safety.