Built-in 20 degree angle guides provide consistent and accurate sharpening angle, and the hexagonal hand guard provides safety and prevents the rod from rolling. Ceramic is times harder than steel, making it highly effective in sharpening most knives and tools made of extremely hard materials that cannot be sharpened with a regular steel sharpener. Ceramic has superior abrasion resistance, making it highly durable and resistant to wear, and the 3000 Grit fine grit of Sharpeak ceramic sharpening rod helps to polish and refine the edge of a blade, creating a razor-sharp finish. The ceramic material is non-toxic, odorless and never rusts,. Removable rubber cap to protect a support surface from scratch as well as to reduce chipping and nicking when drops. While some sharpening rods claim to be 12-Inch in length, it's important to note that this measurement may include the handle. However, Sharpeak sharpening rods have a rod length of 12-Inch, excluding the handle. With the handle included, the total length measures 17.5-Inch, making it suitable for sharpening a wide range of knives, from small chef's knives to large butchering knives. Sharpeak offers a 3-year warranty and superior after-sale service, with headquarters in California and overseas branches in Germany and Australia. Sharpeak Total L.17.5-Inch/Rod L.12-Inch Ceramic Sharpening Steel Rod with Built-In Angle Guides and Anti-Breaking Cap, Sharpening Rod, Knife Steel, Ceramic Honing rod, Chaira Para Afilar Cuchillos