Maintain your knives in the field to the exact angle you set with this multi-functional sharpening kit! Featuring the same four angles as the legendary Lansky Controlled-Angle Sharpening System. The QuadSharp is the perfect portable knife sharpener and kit accessory. The built-in ceramic polishing benchstone allows this pocket sharpener to be used as a fully functional, stand alone sharpening solution. The smallest, most versatile multi-angle knife sharpener available!