Slitzer Germany CTDSTEEL 10 Diamond Sharpening Steel A dull knife is a danger and disaster in kitchen. Maintain your knives and keep them sharp with the Slitzer Germany 10" Diamond Sharpening Steel Features 600# grit diamond coated steel rod and ergonomic handle Hang up ring and polyurethane sharpening tip to protect your counter during sharpening Measures 15-5/8"