The illustrated Lansky Knife Sharpener is the Lansky Professional Crock Stick Knife Sharpener that features alumina ceramic knife sharpening rods. Simply insert the rods into the wood base, and sharpen your knives with an easy slicing motion. The professional Crock Stick Knife Sharpener is a must for the home or professional kitchen. This 2 stage sharpening system has a hardwood base that is pre-drilled on the top with rod angle holes for 20 degrees and 25 degrees. Use the 20 degree angle to thin and tune the bevel of the blade; then move to the 25 degree angle for final sharpening and polishing. This Lansky knife sharpener comes with 4 alumina ceramic rods-2 medium and 2 fine, with an overall length of 9", a hardwood base with integral snap-in rod storage underneath, and a permanent hand guard protector.