6 Piece Set:2 x wrist guards, 2 x elbow pads, 2 x knee pads, It will provide full safety protection for your kids when doing outdoor sports. Material:The skateboard helmet adopts tough ABS shell with soft EPS liner which can absorb external pressure caused by impact in skateboarding activities.Multiple adjustable elastic straps and magic sticker fasteners for secure fit for different knee circumferences . Adjustable:Our children's bicycle protective helmet is adjustable, and the knee pads, elbow pads and wrist pads have adjustable Velcro and elastic bands. It can be flexible to fit different sizes of knee, elbow, wrist and children of different ages. Breathable:Joint protection and bicycle helmet are breathable. The bike helmet features 11 ventilation holes to allow airflow and keep your head cool. Special multi-ventilation design and breathable foam helmets and protectors help kids feel cool and comfortable even during intense body movement. Full Protection:The kids bike helmet is CE certified. The children's protection is ideal for cycling/inline skating/motorcycling/skateboarding/scooter/biking and many other outdoor sports.