Ernie Ball Super Locks， Nickel<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Nickel plated steel </span></li><li><span class="a-list-item"> 360 degree connection </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41IciakP3ZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41lhvGSahdL.jpg" noproxy>