Lansky Deluxe 5 Stone Knife Sharpening System - The Ultimate in Knife Sharpening Systems Technology Safe, Easy and Convenient to Use. The Lansky Controlled Angle Sharpening System is designed to give your blade a professional, razor sharp edge every time. Includes Extra Coarse (70 grit), Coarse (120 grit), Medium (280 grit), Fine (600 grit) Alumina Oxide Hones and an Extra Fine Ceramic (1000 grit) Hone. Included Stones: Extra Coarse (70 grit)Coarse (120 grit)Medium (280 grit)Fine (600 grit)Extra Fine Ceramic (1000 grit)