Noa Store Knife Sharpener Professional Kitchen Sharpening System Fix-angle with 4 Stone III Professional knife sharpener, for different sizes of knives. Quick and easy way to sharpen knife blade. Sharpening stone can use oil or water. Come with 4 high quality stones, #120,#320, #600 and #1500 Knife is not included. Simple reassembling needed. Package includes: 1 set sharpeners, 4*stones