Greenten Chrome Roller String Trees Retainers，String Guides with Screws Replacement，1 Pair<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> 100% Brand New，High quality </span></li><li><span class="a-list-item"> One pair of double roller string trees with mounting screws.Special rolling design improves performance of even the best set-up guitars. </span></li><li><span class="a-list-item"> package included: 1 pair guitar string trees </span></li><li><span class="a-list-item"> Tall:12.07mm/0.475 in，all size，Please look at the last Pictrue </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41yckFc0DiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41xmw1N-B7L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51hXDsrzlyL.jpg" noproxy>