Describe: Sharpening tools help you easily sharpen the right angle of the blade during stone sharpening. Smart design, compact and simple usage, the tool will be a powerful tool to help you preserve cutlery in the family. Size Information: Weight: kg Size: cm Use & Storage: Use: Keep sharpening angle for Japanese KAI knives. Preservation: Hygiene products by hand. Keep in dry places. Brand Information: Brand: KAI Made in Japan. Products without warranty.