Rena Germany Knife Sharpening Rod - Stainless Steel Knife Sharpener - Knife Sharpener Stone - Serrated Knife Sharpener Stick The sharpening rod is designed to quickly sharpen all your standard kitchen and household tools. The sharpening rod hones and re-aligns the cutting edge at the same time.Total Length Approx. 455 mm & Rod Length Approx. 300 mm The Rod is made of High Carbon Stainless Steel The Handle is made from virgin Polypropelene material.