Description: Double sided: diamond grinding blade, the front is high quality sand, 400/1000# grit, suitable for different tools grinding. Corrosion resistant material: Honeycomb surface design, the sharpening tool is made of high quality diamond material, which is resistant to alkali and corrosion, and is easy to maintain. Adjustable: The length of the rail bracket can be adjusted, it is stable and does not shake, and it is suitable for most whetstone sizes. Wide range of application: suitable for sharpening kitchen knives, outdoor knives and other knives, such as pocket knives, scissors, hedge shears, kitchen knives, woodworking chisels, jade, seals, seal cutting knives, etc., and chamfering of glass bricks. Also suitable for hard steel utility knives such as kitchen knives, butcher knives, bone cutters, planers, etc. Specification: Material: Diamond Size(LxW×H): Approx. Bracket: 290x70x30mm/11.42x2.76x1.18inch Whetstone: 203x70x8mm/7.99x2.76x0.31inch Package Includes: 1 Piece Whetstone 1 Piece Bracket Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on line shopping!