Safety thumb rest Lanyard hole for easy attachment to a belt or backpack Roomy, over molded, rubber non-slip grip for maximum comfort and control The deluxe version of Lansky&';s super fast tungsten carbide sharpener features a roomy, overmolded, rubber, non-slip grip for maximum comfort and control. Sharpener has a safety thumb rest and a lanyard hole for easy attachment to a belt or backpack.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }