Grit: 400 grit and 1200 grit Size: (L) 8″ x (W) 3″ x (H) 1 1/4″ The 400 girt side of this stone is coarse enough to remove small nicks and to restore an edge quickly. The 1200 grit side allows for medium polishing and yields a sharper, more polished blade. It is important to keep the slurry-like paste (which forms when sharpening the tool) from leeching onto the other side of the stone as this can lead to a mixture of the two grits. Recommended for Mcusta Zanmai knives. The stone should be soaked with water before use, and preserved dry when finished.