Zwilling Twin*Master Sharpening Steel, 10"Conventional honing steels are made of steel that has ridges lengthwise like a file. These ridges help remove burrs, a slight metal buildup, off the edge of a knife. Using this steel on a routine basis will help maintain the sharpness of a knife. 10" long Ergonomic non slip synthetic resin yellow handle FDA & NSF approved Made in Spain All ZWILLING J. A. HENCKELS products are fully guaranteed against defects in material and or craftsmanship