John Pearse 980M Acoustic Strings Pure Nickel 13-57 980M， Medium<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Pure nickel wound medium gauge </span></li><li><span class="a-list-item"> 0.013， 0.017， 0.026， 0.035， 0.045， 0.057 </span></li><li><span class="a-list-item"> Very versatile medium gauge string </span></li><li><span class="a-list-item"> All products made and printed in the USA </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/617mjKb7mAL.jpg" noproxy>