Your WSTHOF knives are designed to be maintained on a regular basis. A sharp knife is a safe knife and does what its suppoed to – cut. Use the steel on a regular basis – stroke the knife down the full length of the steel at 20 degree per side, 4-5 strokes per side and easy does. – Keeping knives sharp is easy if you sharpen them often on a WSTHOF sharpening steel. – Dimensions: 26cm / 10-in