Innovative cleaning channels, full diamond coating. Perfecty flat surfaces ideal for flattening chisel & plane blades. Double sided grinding to ensure the efficient and sharp sharpening result. High quality plastic base with non-slip silicone pads can prevent from sliding and ensure safety during sharpening a knife. Product Features High quality diamond plating, ten times more efficient than ordinary sharpening stones Fast sharpening in a short time ABS plastic base, stable and non-slip Double-sided grinding, rough grinding 400 or 600#, fine grinding 1000 or 1200# Coarse side for knife sharpening, fine side for knife polishing and daily care. Suitable for all kinds of knives at home, such as scissors, kitchen knives and other woodworking tools. Sharpening stone size: 155x60x8mm Total size: 185x92x40mm Mesh includes: 600/1200#, 400/1000# Material: diamond sand + plastic base Weight: 300g Color: black Package includes: 1pc * sharpeners