On Stage SS7322B Adjustable Wall Mount Speaker Bracket， Pair<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Standard 1 3/8" insert fits most speaker cabinets. </span></li><li><span class="a-list-item"> 90 Interlocking teeth mesh together to form a solid adjustable pivot point for tilting your speakers. </span></li><li><span class="a-list-item"> Added solid-steel pin serves as a safety-stop. </span></li><li><span class="a-list-item"> 9mm Steel bolt and nut. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31JxnL8Ca1L.jpg" noproxy>