Aquila Silver Rumblers for U-Bass<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> KALA U-BASS and Aquila Corde team up to bring you SILVER RUMBLERS </span></li><li><span class="a-list-item"> Using Aquila’s patented technology and materials， SILVER RUMBLERS are a special blend of Aquila’s Nyglut compound and calcium carbonate </span></li><li><span class="a-list-item"> Provides increased density， stability and， most importantly， the ability to resonate tone at very low frequencies </span></li><li><span class="a-list-item"> . </span></li><li><span class="a-list-item"> . </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41II-YlA8SL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31hwDCh5deL.jpg" noproxy>