The Mercer Culinary M15912 SplitCase features a 12-inch diamond sharpening steel designed for professional-grade knife maintenance. The durable diamond surface effectively hones and sharpens blades, ensuring optimal cutting performance. Its black polypropylene handle provides a comfortable, secure grip, enhancing safety and control during use. Proudly made in the USA, this sharpening steel is an essential tool for chefs and culinary enthusiasts looking to maintain their knives in peak condition.