Features a tungsten carbide tool for re-edging blunt knives, ceramic rods to polish the edges of freshly-sharpened knives and synthetic diamond coated rods for regular honing of your knives to keep them sharp. With a secure non slip base. What’s the difference between honing & sharpening? Honing a blade gently straightens any microscopic kinks & bumps in the edge that occur during day-to-day use. Regular honing keeps a knife sharper for longer. If your knife no longer cuts with ease, or you want to bring an old favourite knife back to life, sharpening removes material from either side of the blade to recreate the original fine cutting edge.