Lansky sharpeners deluxe quick edge slip resistant sharpener! FEATURES:-Carbide Pull-Thru style Sharpening element-Roomy, over-molded rubber grip for maximum comfort & control-Safety thumb rest-Lanyard hole for easy attachment to a belt or backpack Other Features: Carbide sharpens in 3 to 4 strokes, replaceable carbides, slip resistant grip, thumb rest, red, can be purchased in case packs of6