Priority Chef Knife Sharpener, Professional Kitchen Sharpening Knife Sharpener System Fix-angle With 4 Stones Professional knife sharpener, for different sizes of knives. Quick and easy way to sharpen knife blade. Safety design to protect your hands, More stable sucker disc base. Color ruler to show the accurate knife angle., Knife is not included. Come with 4 high quality stones, #120#320, #600 and #1500