Specification:Size: S (20-40KG);Material:Protective layer: PE shell + flannel;Helmet: injection-molded ABS, self-adhesive EPS;Suitable: 3-11 years old;feature:-There are 11 valves on the top of the helmet to ensure good ventilation and perspiration for children during exercise.-The surface of the helmet is made of injection-molded ABS shell, which has strong impact resistance.-The \"bowl\" helmet covering the back of the head better protects the entire head.-Helmet glue EPS, environmentally friendly materials, light and breathable, better cushioning effect.-The interior decoration can be disassembled and cleaned.-There are fan buckles on both sides of the helmet, which can adjust the tightness according to the head.-PE material is impact-resistant, high-strength, high-density, high-hardness, wear-resistant, drop-resistant, and durable. Curved design, comfortable to carry, effective transmission of vibration, reducing fall injuries.-Use additional cushions, shock-proof, anti-fall, quality assurance, comfortable to wear, and can provide effective cushioning effects.-Brand new ring, imported high-quality elastic fiber environmentally friendly dyeing. With new technology, Velcro will not stay in the same place.Package Included:2 x knee pads;2 elbow pads;2 x bracers;1 helmet;