Using high hardness medium carbon steel material and magnetic casting technology, high hardness and wear resistance. Suitable for chef knife, Sushi knife, Santoku knife, Throwing knives, Steak knives, Pocket knives, Steel knives, Outdoor knives, Diamond knives, Tungsten knives, Tactical knives, Ceramic knives and kitchen knife set. The anti-slip rubber base ensures stability and safety, preventing the sharpener from slipping. Use it on any flat surface in the kitchen, including wood, stone or glass worktops. Ergonomic handle design with PP material,suitable for both left and right-handed users.. non-slip easy to grip, let your sharpening is more convenient.