D'Addario NBM1140 Nickel Bronze Mandolin Strings， Medium， 11-40<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Delivers a full tonal spectrum， revealing the unique tonal qualities of your mandolin </span></li><li><span class="a-list-item"> Increased corrosion resistance for a longer lasting uncoated string </span></li><li><span class="a-list-item"> Feature D’Addario’s exclusive high-carbon NY steel for unprecedented strength and tuning stability </span></li><li><span class="a-list-item"> Environmentally-friendly， corrosion-resistant packaging keeps strings fresh </span></li><li><span class="a-list-item"> Made in the U.S.A. For the highest quality and performance </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51LzNXBW9wL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51QEipfM3cL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/5187D4KIBZL.jpg" noproxy>