MAC, founded in 1964 is the world's finest and sharpest knife brand. Their precision tools are shaped, assembled, polished, and sharpened by professional Japanese craftsmen, in Japan in a series of 64 steps to guarantee that each one is a flawless precision tool. Fine-tune your knives with the Mac Ceramic Sharpening Rod. Crafted from extremely hard black ceramic, it works seamlessly with all knives, leaving virtually invisible blade scuff marks. With a steel-reinforced core and shock-absorbing latex, this rod ensures long-lasting durability and resistance against breaking and chipping, all while providing a rust-free alternative to metal steels. Along with a 25-year limited warranty, your knives will be razor sharp for years to come. Features: Ceramic knife sharpening steel Steel-reinforced core with shock-absorbing latex resists breaking & chipping Extremely hard black ceramic - works on all brands of knives Blade scuff marks are nearly invisible. Will not rust like metal steels Tip end treated to resist slipping 25-year limited warranty Length: 24cm.