This is the knob for a GRS Tools Magnum hand engraving hand piece. Either replace the one you have or, change from the oval knob to palm knob. This item is in the category "Jewelry & Watches\Jewelry Care, Design & Repair\Jewelry Tools & Workbenches". The seller is "dakotadocmartin" and is located in this country: US. This item can be shipped to United States, Poland, Ireland, Netherlands, Slovakia, Slovenia, Sweden, Iceland, Macedonia, Belgium, Liechtenstein, Italy, Switzerland, Republic of Croatia, Portugal, Malta, Cyprus, Austria, Bulgaria, Czech Republic, Norway, Greece, Greenland, Montenegro, United Kingdom, Bosnia and Herzegovina, Hungary, France, Denmark, Vatican City State, San Marino, Spain, Estonia, Bermuda, Albania, Monaco, Moldova, Saint Pierre and Miquelon, Gibraltar, Canada, Andorra, Romania, Mexico, Serbia, Lithuania, Finland, Luxembourg, Germany, Latvia.