On-Stage SS7764B Air-Lift Speaker Stand<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Self rising center tube helps do the lifting and lowering; easy one person operation </span></li><li><span class="a-list-item"> Internal Air-Lift center piston provides 40 lbs. of lifting power </span></li><li><span class="a-list-item"> lob max capacity </span></li><li><span class="a-list-item"> 1 3/8" Upper shaft tubing </span></li><li><span class="a-list-item"> Tripod base design with added leg braces provides a stable foundation </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31wcs%2BFzkOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31duS4LcjXS.png" noproxy>