The deluxe version of Lansky"s super fast tungsten carbide sharpener features a roomy, overmolded rubber non-slip grip for maximum comfort and control, safety thumb rest and a lanyard hole for easy attachment to a belt or backpack, Non-slip thumb rest, Rubber overmolded non-slip grip, Lanyard hole, Fixed-angle tungsten carbide sharpening heads are replaceable, SKU: FBLSTCN