Kmise Z4079 Chrome Guitar Mandolin Ukulele Output End Pin Jack Socket for Piezo Transducer<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> High quality fit for almost kind of guitar or ukulele  </span></li><li><span class="a-list-item"> also acts as strap button </span></li><li><span class="a-list-item"> 2.5mm input jack for an under saddle piezo or surface transducer </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31kLnFx8YkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/412LgZ2eHdL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41VufT3QZaL.jpg" noproxy>