Features: New material injection type ABS shell, strong protection against impact, bowl shape design, large area coated back head. Better protection of the entire head imported high-density environmentally friendly adhesive EPS, light and breathable, excellent shock absorption and shock absorption. The helmet features a scalloped buckle that adjusts to the size of the head for a more comfortable fit. Removable lining for easy cleaning. There are vents on the top of the helmet to ensure good ventilation and sweating during exercise. Environmental Thickening and High Density EPS Inner Gallbladder Stroke Absorption is Better. Adjustable elastic fan buckle is more comfortable to wear. Description: Wheel skating, cycling, skateboarding and other sports have certain risks and uncertainties as sports events. Any sudden situation will lead to fall injury. The most vulnerable parts are the head, palm, elbow, knee, hip and other easy contact surfaces. Whether beginners or skilled people must wear complete protective devices, including wrist guards, elbow guards, knee guards and helmet. Safety problems are not small. Especially in roller skating, falling backwards will fall to the head, if not properly protected, it will cause serious injury. Specifications: Shell Material: ABS Colour: blue,red,black,white,pink,yellow Size: 360*280mm Weight: 280g Suitable Head Circumference: 48-52cm,52-56cm,52-56cm,57-61cm Package included: 1x Helmet Notice: 1.All the pictures in our store are 100% taken from the original products. Because of light in different environments, different display screens, and other reasons, probably there will be a little chromatic aberration between picture and product. 2.Due to the manual measurement and different measurement methods, please allow1-3cm deviation.Thanks!