Smiths Diamond Retractable Sharpener Diamond-coated steel rod construction;Medium 400 grit monocrystalline diamond surface;Reversible rod: Tapered for serrations, half-round for straight edges;Adjustable rod length for versatile use;Sharpening groove for hooks;Pen-sized design for compact carry;Rod retracts into handle for storage;Pocket clip for convenient access;Suitable for single or double-bevel knives and serrated bladestable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Second Color: Silver Item Category Code: 8400 Product Group Code: 8400B Inactive: No