On Stage SS7746 Adjustable Subwoofer Pole with M20 Thread<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Eliminates any and all wobble that would translate to the subwoofer. </span></li><li><span class="a-list-item"> Steel shaft pole telescopes from 30 to 54 inches in height </span></li><li><span class="a-list-item"> The captive steel security pin makes sure the adjustable steel pole wont move </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/21qY5MaSeML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31-bQQ1O7tL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31ZIC4fM%2B6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/313l49IepfL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/01J5DYTHMaS.png" noproxy>