1. Children's bicycle helmet set with knee pads, elbow pads and wrist guards. A 7-piece adjustable safety set for toddlers and teenagers, suitable for 4 - 12-year-old boys, including a bicycle helmet for use in roller skating, scooter riding, skateboarding and other activities. 2. Features: The sturdy baby helmet is designed with protective materials, cushions, a streamlined and curved structure. It is of high quality and provides optimal protection for the head, knees, elbows and wrists during various sports. The comfortable, lightweight, soft and breathable pads and ventilation holes keep you cool and comfortable even during intense exercise. It is the best choice for Children's Day, Christmas gifts and flexible use. 3. The knee, elbow and wrist guards come in various sizes, are flexible, fixed, adjustable and quick to release. The impact-resistant helmet has an ABS outer shell and a high-density EPS inner shell. The thickened soft sponge helps absorb impact and protect the head during collisions. The protective gear is made of a high-hardness PVC outer shell, thickened soft sponge and durable, tough materials, with a breathable lining to protect the head, knees, elbows and wrists. 4. This children's protective gear set includes 1 safety helmet, 2 knee pads, 2 elbow pads and 2 wrist guards, providing comprehensive and excellent protection for your child in activities such as roller skating, horseback riding, ice skating, cycling or other outdoor sports. It is an excellent gift for your child's birthday, Thanksgiving and Christmas. The comprehensive protection gives your child more confidence during training. 5. Package contents: 1 safety helmet, 2 knee pads, 2 elbow pads, 2 wrist guards.