1 child professional protective equipment set: contains 1 helmet + 2 knee pads + 2 elbow pads + 2 wrist pads to provide protection for many outdoor sports, such as skating, skateboarding, cycling, scooters, scooters, scooters, Scooter and so on. 2 adjustable straps for a better fit: this toddler helmet is specially designed for children aged 3-8. Helmet and head circumference 48-54 cm / 18.9-21.2 inches, please choose according to head circumference. 3 Certified safety: CPSC and CE certified helmets (including impact damping capacity, effectiveness of the lacing system, and field of view). It has passed all safety tests, and your child will be eligible for compliance. 4 Impact resistance: ABS shell + high-density EPS foam inner shell provides shock absorption and thick soft sponge, comfortable and durable. The protective equipment is made of sturdy and durable PP and PE materials, with a breathable polyester sleeve, allowing children to enjoy the exercise experience, while providing safety protection for their head, knees and wrists. 5 Money Back Guarantee: We believe that we will provide you with the most cost-effective children's helmet on the market. If you are not satisfied for any reason, you have 1 year to notify us, and we will refund the full amount