Keep your knives in their best condition with the Kasumi 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 8000-grit side hones and fine tunes the edge and should be used after the 3000-grit side. The stone also includes a non-slip rubber holder to keep the Whetstone in place during use, ensuring precision and safety whilst sharpening. Size: 18×6×3㎝