Oval Diamond Dust Sharpening Steel. Extremely light, easy to handle, safe and durable way to sharpen your knives. Made with micro-interlock diamonds electro-bonded to create a lightweight but strong shaft that sharpens and realigns, producing a professional edge every time. Measurements: 10 Inch - 15.2"L x 2.9"W x 1.6"H 12 Inch - 18.7"L x 2.75"W x 1.9"H