MAG-MATE WG250 Magnetic Welding Ground， 250 Amp</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Powerful magnet attaches securely to Steel work surfaces</li><li>Spring loaded 1/2 inch diameter stud assures constant electrical ground contact</li><li>Quick easy release stainless Steel release handle</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/41YMh%2BHtDxL.jpg' noproxy></br>