Sharpens a wide variety of knives. Two stage sharpening for standard knives (coarse & fine). Serrated blade sharpener (fixed angle). Will quickly sharpen very dull or damaged blades. Can be used to maintain the edge on knives that are already sharp. Easy adjust knob allows sharpening at a wide range of angles (14 degree/side to 24 degree/side). Replaceable abrasive components. Soft Grip Handle. Non-slip rubber feet.