The Shun Classic Combination Honing Steel features two surfaces, including a smooth side for day-to-day honing and a micro-ribbed side for weekly honing. The built-in angle on the handle makes it easy to hone your knives to the correct 16° Shun angle. The premium PakkaWood handle provides a secure grip and matches the handles of the rest of the beautiful Shun Classic line. Use for gently realigning the cutting edge of your Shun cutlery. With each use of your knife, the edge naturally bends over just a tiny bit. The edge is still sharp, but the sharpest part isn't making contact with the food.