This Premium high-grade water stone ensures effective sharpening results. The single-sided sharpening design is 1000Grit. Equipped with silica gel non-slip base to guarantee safe sharpening. The stone is Corundum which is a crystalline form of aluminium oxide typically containing traces of iron, titanium, vanadium and chromium. Ideal for kitchen and professional knives, outdoor hunting, fishing and farming knives and woodworking tools such as chisels etc. 180 x 60 x 14mm. Boxed.