EZE-LAP LM Medium Diamond Hone Medium diamond grit; 400; grit; fast metal removal to re establish a dull edge All hones are 3/4-Inch by 6-Inch with a diamond surface measuring 3/4-Inch by 2-Inch Longest lasting and most durable sharpening tools available Quick easy way to sharpen both cutlery and tools, the "professionals" choice Made in USA