Thomastik-Infeld S23 Spirocore Medium Gauge， Set of 4， Viola Strings， 4/4<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Have a flexible multiwire spiral rope core </span></li><li><span class="a-list-item"> Offer a longer period of musical vibration </span></li><li><span class="a-list-item"> Significantly reduce inertia </span></li><li><span class="a-list-item"> Equally effective when playing Arco or pizzicato </span></li><li><span class="a-list-item"> Highly responsive and long lasting </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51ltH%2BpzqQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ovyu52YYL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41LiZzAaV0L.jpg" noproxy>