Rox Speed FX Dorsal Plates are designed to mount on the side of C&A Pro Skis. Their design creates more surface area which prevents push in the corners while riding in moderate or heavy snow conditions. Used by countless Professional Snocross Racers. Includes 2 dorsal plates and mounting hardware. You will need to drill holes in the side of the skis to mount the dorsal plates. NOTE: Skis NOT included!