1、7 in 1 Protective Gear Set - Kids bike helmet, two knee pads, elbow pads and wrist pads, which ensure your kids in all-round conservation while doing sports. 2、Breathable: The helmet features 11 air vents to ensure good ventilation. The dial system is adjustable to fit head circumference: 50 - 54cm (19.7\" - 21.2\"). 3、Good conservation - The pads are made of tough PP shell and breathable polyester fabric to provide maximum conservation, soft foam padding offers shock absorption and comfort. 4、Comfortable Fit - Adjustable elastic straps with adhesive tape closure provide secure fit for various knee/elbow/wrist girths. 5、Multi-purpose: Suitable for inline skating, skateboard, Cycle, scooter, roller blading, and other sports. This knee pads, elbow pads, wrist pads and helmet set can provide your kids with all-round and perfect conservation when doing sports. Features: 7 in 1 Protective Gear Set - Kids bike helmet, two knee pads, elbow pads and wrist pads, which ensure your kids in all-round conservation while doing sports. Breathable: The helmet features 11 air vents to ensure good ventilation. The dial system is adjustable to fit head circumference: 50 - 54cm (19.7" - 21.2"). Good conservation - The pads are made of tough PP shell and breathable polyester fabric to provide maximum conservation, soft foam padding offers shock absorption and comfort. Comfortable Fit - Adjustable elastic straps with adhesive tape closure provide secure fit for various knee/elbow/wrist girths. Multi-purpose: Suitable for inline skating, skateboard, Cycle, scooter, roller blading, and other sports. Specifications: Material: Polyester + PP + EVA Color: Pink / Blue / Black / Red / Green (optional) Helmet Material: ABS + EPS Head Circumference: 50 - 54cm / 19.7 - 21.2in Recommended: For age 2.5 - 7 years old, weight 15 - 35kg Package List: 1 * Helmet 1 * Pair of Knee Pad 1 * Pair of Elbow Pad 1 * Pair of Wrist Pad 1 * Helmet 1 * Pair of Knee Pad 1 * Pair of Elbow Pad 1 * Pair of Wrist Pad