Smith 4in Diamond Stone Knife Sharpener

Featuring multiple layers of micron-sized monocrystalline diamonds bonded in nickel to a flat metal surface, the Smith 4in Diamond Sharpening Stone is suitable for use with knives and hooks. The compact and convenient size makes it the perfect tool for your tackle box or bag for keeping your knives razor sharp when your out landing dinner! During use, the plastic lid can be inserted into the bottom of the stone base to extend the height of the base and make sharpening your knife safer.