KEY FEATURES Function: Sport Protection Size: S for kids 3-10 years old Product name: Knee Elbow Wrist Protector and Helmet Feature: Adjustable Type: Outdoor Sports Usage: Roller Skating Skateboard BMX Scooter Cycling Packing: Mesh Bag Material: ABS, EPS, EVA Kids are always lively and full of energy, sports are also very important for children, therefore, head, joints and palm should be better protected with appropriate and reliable safety protective gear set during outdoor activities. Our goal is keep our kids away from hurt when they enjoy the joy of sports.