Having sharp knives in the kitchen is a great advantage. With this sharpening stone, you can sharpen blunt blades yourself. It is specially designed for ZWILLING blades to give absolute sharpness. It measures approximately 20cm x 8.5cm x 4cm. Every knife becomes blunt over time so will require the assistance of the TWIN Stone Pro sharpening stone. It enables coarse and fine sharpening and is easy to use to ensure your blades continue cutting cleanly. Whatever your cutting needs, this sharpening stone from ZWILLING will get your worn knives back into action.