This is the electric knife sharpener that uses a professional grade sharpening belt to hone blades without removing excessive material. Unlike lesser units that erode knives with aggressive grinding, this model prolongs the life of your blades by removing the barest minimum of metal to achieve a fine edge. It has three speeds (shape, sharpen, and refine) and an integrated vacuum to collect steel dust or belt particles. Accommodates straight-edge, serrated, and single bevel knives, as well as scissors and shears. AC plug. Black. 7 1/4" L x 4 1/2" W x 5" D. (2 3/4 lbs.)