Formulated with natural grinding powders and ultra-fine particulates, the blade is soft and non-slip, and has good bites, making it the perfect finish even with light sharpening. White Nagura Whetstone with Wooden Base Size: 8.3 x 3.0 x 9.1 inches (210 x 75 x 23 mm); Grit size: 23.6 ft (6,000