Easily straps over your shoes to put a spring in your step. High ankle support and chunky off-road grip ensures complete stability. For ages 6 years and over. Always wear a helmet, knee/elbow and wrist pads. For shoe size 1-5. Size (H)40, (W)31, (D)12cm. Made from nylon, rubber, assorted polymers and velcro. Product supplied fully assembled.