Material: Ceramic, Stainless Steel, ABS Color: Bright Silver Product Dimensions: 18.5 cm length x 4.5 cm width x 5 cm height Item Weight: 129 grams Manufacturer: Jinhua Saige Fitness Equipment Co., Ltd. [Easy to Use for Professionals and Beginners, Rust-Resistant and Long-Lasting] This knife sharpener uses stainless steel and ceramic materials, reducing blade wear from sharpening and extending the life of your knives. The simple 3-stage sharpening design (coarse sharpening and finishing) restores the sharpness of dull knives and knives, and also makes the knives themselves last longer. [Sharp Lifting, 3-Stage Knife Grinding] The abrasive uses high-quality different materials and has three ports used for coarse grinding + fine grinding + finishing aviation ceramic. After use, the blade is sharper and easier to use, and does not damage the blade. Coarse grinding 5-10 times, fine grinding 3-5 times, and finally finish after grinding 4-5 times. (Please pull the grinding in one direction.) [Small Size, Compatible with Various Knives] This sharpener is compact and fits in your hand, making it easy to store. Extendable storage design, can be used not only in the kitchen, but also outdoors. It has a wide range of applications and is suitable for many types of knives. Applicable to knives such as kitchen knives, chef's knives, fruit knives, cleavers, scissors, boning knives, and kitchen knives. [Knife Sharpening, Anti-Slip Design] The sharpener has an ergonomic, easy-to-grip handle, and a non-slip cushion is designed on the bottom. By holding the handle with the right width and securing it firmly, it is difficult to scratch the knife when sharpening, and it can be used by both men and women in the kitchen.