Feature:1. 2-In-1 helmet for normal cycling use and MTB, BMX, skateboard, mountain biking and dirt bike.2. High quality and extremely durable for all round protection when cycling, skating, BMXing & scooting.3. Aerodynamic design with 13 vents for increased functionality in a range of bright & vibrant colours.4. Sizes to fit child, kids, youth, teen, adults 5-8 and more ages.5. Detachable chin guard with a patented locking mechanism for a secure grip and easy one click release.Specification:Material: PC + EPSLining: polyester fiberWeight: about 420gHead circumference: about 52-56cmInternal size: about 17.5 * 20cmThere are 13 vents, suitable for ages 5-10 yearsPackage List:1 pcs Kids HelmetNote:Due to the different monitor and light effect,the actual color maybe a slight different from the picture color.Please allow 1-2cm differs due to manual measurement.