Sharpening Stone Salmony 1000/6000 Grit Double Side Knife with Silicone Base Combination Corundum Whetstone Sharpener Suitable for sharpening knives, scissors and other cutting tools Double sided 1000/6000 Grit , Stone Net Weight : 618gram (1.35lb) Size : 7" x 2.4" x 1.1" (180mm x 60mm x 27mm) , Non-slip silicone base included Combination Corundum, We plus SiO2 powder, high-density particles do not damage your knives, stones increased hardness, more wear-resistant