Adopting the premium material, which is innoxious and eco-friendly, so this sharpener is safe to use, and with the compact structure and light weight, you can carry it around when in the act of camping. Designed with the double sides that has coarse-grained surfaces, this sharpener can provide you with fast grinding speed, outstanding grinding effect and good practicability. This cutter sharpener is made of carborundum, which is reusable and anti-corrosion. Its length is 6.5cm, its width is 2cm and its height is 1cm. It is suitable for grinding carving chisels, but you can also use it to grind fruit knives, folding knives and so on. Item Name: Cutter Sharpening Stone Material: Carborundum Product Length: 65mm Granularity: 320 Grits Color: Green Size Details: 6.5cm x 2cm x 1cm/2.56" x 0.79" x 0.39" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Whetstone