Quick Shipping Usually ships in 1 business day Product Overview Restores the 16-degree angle on any Kai double-bevel, straight-edged knife (sold separately) Simple process: first slot for rough sharpening, second slot for refinement, last slot for finishing Ambidextrous design accommodates both left- and right-handed users Retractable cover allows for compact storage Not designed for use with blades with nicks or chips, or with blade stock wider than 3.5 mm UPC Code: 4901601012019