Product description: Features: Single-sided diamond sharpening stone, lightweight and ultra-thin, can be easily and efficiently sharpened and polished. Application: Very suitable for grinding all kinds of kitchen knives, planers, scissors, garden tools, woodworking tools, simple operation and convenient to carry. Material: Diamond, 400/600/800/1000Grit Size: about 152x63mm Package includes: 4 Pcs diamond-coated whetstone