Features: 1. Ruby oilstone is formed by high temperature sintering, with very high hardness and strength. 2. A fine-grained whetstone lubricated with oil, used for fine sharpening. 3. It is rose red, structure is fine and compact, has almost not easy to wear and tear the surface. 4. Double sided grindstone design, convenient and easy to sharpen knives. 5. Sharpening stone is for knives, chef knives, scissors, chopper, cutting tool. Specifications: Material: Ruby Oilstone + White Agate Grit Type: 3000Grit, 10000 Grit Color: 3000 Grit: Rose Red, 10000 Grit: Semitransparent Size: Approx. 50 x 25 x 10mm / 1.97 x 0.98 x 0.39inch Weight: Approx. 45g Package Include: 1 x Double Sided Whetstone Note: Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.