DW May Non Drill Bass Drim Air Vent Connector<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> No drilling is required. </span></li><li><span class="a-list-item"> Allows you to directly plug an XLR cord into the bass drum for internal micing </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31Zpp5jSgXL.jpg" noproxy>