This sharpener has the same function as the sharpening steel, is very easy and efficient to use because it always sharpens your knife at the same angle, does not rust and is easy to hold. The “steels” of this sharpening unit are replaceable. It also comes with a bracket to attach it to your wall or table. Replace the sharpening arms of the sharpening unit every 12 months when used daily. Features: ¥ With mounting bracket Replaceable sharpening arms