Sigma Electric 41311 1/4-Inch， 2-Inch Ground Clamp， 1-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Copper Alloy</li><li>Connects Copper Conductor to Water Pipe</li><li>Wire size 10 sol. - 2 str</li><li>This product is UL Listed</li><li>This Product is CSA listed</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51IJorlNIDL.jpg" noproxy>