The Cobra NT 3000 blade is an aggressive, stable blade designed for improved balance, better agility and quicker acceleration. It is compatible with both 3000 and 5000 series hockey holders. Give your game a new edge with a new pair of Graf 3000 Cobra Runners! Checkout a pair today! * Made of aerospace-quality stainless steel, the Cobra * Is easy to sharpen, and maintains a sharp edge longer The Cobra NT 3000 is also * More responsive than conventional blades, giving the player a better feel for the ice * Blade is quick and easy to replace * Simply exchange the runner by means of a single screw * Compatible with both 3000 and 5000 series Graf Holders * Sold in pair only * Check the bottom of your skate for proper sizing