This is the knife sharpening system that will sharpen all kitchen sport and utility cutlery. Never before has a sharpening system done so much! This specialty product utilizes the GATCO� exclusive knife clamp/angle guide to ensure that all cutting tools can be easily sharpened to a precise razor-like edge. - The system includes: - GATCO � exclusive knife clamp/angle guide - Coarse sharpening hone (Yellow) - Medium sharpening hone (Green) - Fine sharpening hone (Red) - Scientifically formulated honing oil - Custom case