Ergotron 33-349-211 WorkFit-S Dual with Work Surface and Stand<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Improve your energy and productivity by standing or sitting as you work， and then switch positions whenever you choose </span></li><li><span class="a-list-item"> Counterbalanced adjustment points allow instantaneous， tool-free repositioning while you work </span></li><li><span class="a-list-item"> Promote fitness and comfort as you compute， reducing potential back and neck pain by adding movement into your work routine in a truly ergonomic workstation </span></li><li><span class="a-list-item"> Easily and simultaneously lift keyboard and LCD screen to proper height for unsurpassed ergonomic comfort </span></li><li><span class="a-list-item"> Patented Constant Force lift technology provides fluid， one-touch adjustments of the keyboard and monitor positions for personalized computing </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41K1WerC5GL.jpg" noproxy>