Ernie Ball 12-string Slinky Nickel Wound Set， .008 - .040<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Made from nickel plated steel wire wrapped around tin plated hex shaped steel core wire </span></li><li><span class="a-list-item"> Produces well balanced all around good sound </span></li><li><span class="a-list-item"> For 12-string electric guitar </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/61uEiK6yu8L.jpg" noproxy>