Heavy duty steel frame with rubber non-slip base and thumb grip. Features: Adjustable blade guide; 3 quick snap angles (20°, 25°, 30°); lightweight aluminum sliders; 325 grit double sided diamond rods and finishing steels. Can sharpen both sides of the blade at one time. Ideal for chefs, hunters, fishermen, or household use. Quick and easy to use. Includes instructional DVD.