Adjustable Size: The helmet features adjustable elastic straps, allowing for a customizable fit for kids weighing 15kg-40kg, with a head circumference range of 18.89 inches to 21.26 inches (48~54cm).All-Round Protection: The protective gear set combines a tough anti-scratch PVC shell for hard protection with soft EVA padding for impact absorption, ensuring comprehensive protection for active kids.Multipurpose Helmet Set: This set is versatile and suitable for a range of sports and activities, including inline skating, skateboarding, cycling, scootering, roller skating, rollerblading, biking, riding, hoverboarding, and electric scootering.Ideal Gift for Kids: This protective gear set is designed to ensure your child's safety during various activities. It makes for a perfect gift for kids on occasions like birthdays, Children's Day, Thanksgiving Day, Christmas Day, and more.7-in-1 Protective Gear: The set includes not only a kids' helmet but also knee pads, elbow pads, and wrist pads. It all comes in a convenient storage bag, making it easy to carry for any outdoor adventure.