Keep your valuable cutlery in their best condition with the Shun Combination Whetstone featuring a fine-grit side and a superfine-grit side. The fine 3000-grit stone side polishes and makes the edge sharp while the super fine 6000-grit side hones and fine tunes the edge. The stone also includes a non-slip rubber holder to keep the Whetstone in place during use, ensuring precision and safety whilst sharpening.