Smith's Sharpeners Pull-Thru Knife Sharpener 7.5in Overall Coarse Carbide Blades And Ceramic Rods Sharpens Left And Right Hand Scissors Gray And Black. The Coarse slot includes preset carbide bladdes set at a 35 degrees combined angles to quickly sharpen European / American style straight edge knives. The fine slots triangular shaped ceramic stones sharpen at 37 degrees combined and are perfect for finishing the edge of the knife and for everyday honing. These triangular shaped ceramic stones are ideal for sharpening serrated knives. This versatile sharpeners patented scissor sharpener works on both right and left handed scissors featuring floating ceramic rods. Specifications for Smith's Sharpeners Pull-Thru Knife Sharpener: Manufacturer: Smiths Handle Color: Black/Stainless Features of Smiths Deluxe Pull-Thru Knife & Scissor Sharpener Guaranteed to sharpen dull knives and scissors in seconds Ergonomic design increases comfort and control Sharpens left and right handed scissors Manual slot for polishing a freshly ground edge or quick touch up of already sharp knives Package Contents: Smith's Sharpeners Pull-Thru Knife Sharpener Smith's Sharpeners 50101: Pull-Thru Knife Sharpener 7.5in Overall Coarse Carbide Blades And Ceramic Rods Sharpens Left And Right Hand Scissors Gray And Black Ergonomic Synthetic Handle