EZE-LAP 51M 2 by 4 Medium Diamond Stone</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Medium diamond grit; 400; grit; fast metal removal to re establish a dull edge</li><li>Works on any material</li><li>Longest lasting and most durable sharpening tools available</li><li>Quick easy way to sharpen both cutlery and tools， the "professionals" choice</li><li>Made in USA</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31M8fH5OvcL.jpg' noproxy></br>