This handy Ceramic Sharpener is ideal for sharpening Global and Porsche knives. The two-stage process requires the ceramic wheels to be soaked in water for a few minutes before use, which enables the blade to glide through the wheels with ease. · Ideal for those who find using a ceramic steel or wet stone difficult · Pre-set, 2 stage sharpener for optimum results · Perfect for all types of Global, Porsche and Asian knives · Wheels are lubricated with water to aid the sharpening process and minimise fiction · Also available in a black & red combination