Wolfbike Sports Protective Gear Safety Pads Safeguard (Knee/Elbow) for Adult Roller Bicycle BMX Bike Skateboard Extreme Sports Impact Outdoor Sports Protector Guards Pads Soft internal padding and tough outer shells add excellent protection High impact polymer closed cell foam padding gives excellent shock protection Adjustable Velcro strap, high flexibility ONE SIZE FITS MOST adults Suitable for outdoor riding, skiing, skating, ice skating and other extreme sports