DR Strings Zebra - Acoustic-Electric Round Core 12-54<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Gauge: Medium </span></li><li><span class="a-list-item"> Designed for acoustic-electric guitars with piezo pick-ups under the bridge...or magnetic pick-ups in the sound hole </span></li><li><span class="a-list-item"> Full size arch top jazz guitars also respond to "Zebras" with "Richer tones" according to players </span></li><li><span class="a-list-item"> ANY amplified acoustic comes ALIVE when you put on the Zebra strings </span></li><li><span class="a-list-item"> Every other coil is nickel-plated steel， every other coil RARE phosphor bronze </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51d7365AoKL.jpg" noproxy>