Material: ABS+silicone+tungsten steel+ceramic+diamond Package list: 1*knife sharpener Descriptions: * Material: Hard blades, ABS, silicone, tungsten steel, diamond and ceramic, durable material. * 4-stage knife sharpener: With our incredible 4-slot system, including diamond sharpening rod for coarse, ceramic sharpening rod for fine sharpening and polish, tungsten sharpening rod for blunt blades and scissors sharpening rod. * Application: Designed for straight knives, such as, chef knife, steak knives, steel knives and scissors and more. * Non-slip base: Anti-skid silicone base makes the sharpener steady and easy to hold. * Handle: Ergonomic handle ensures comfortable and stable grip when sharpening. * Easy to use: Simply position the dull blade on the sharpening slot and make razor-sharpness in just seconds. * Warm tips: 1. Not suitable for serrated blades and ceramic knives. 2. Please keep the sharpening tool clean and dry. * Notes:1. Please allowed 1-3mm differences due to manual measurement, thank you 2. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item