Ergotron WorkFit-S Single LD with Worksurface+ (33-350-200) Improve your energy and productivity by standing or sitting as you work, and then switch positions whenever you choose. This work style encourages healthy movement throughout the day. Counterbalanced adjustment points allow instantaneous, tool-free re-positioning while you work! 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. Easily and simultaneously lift keyboard and LCD screen to proper height for unsurpassed ergonomic comfort. Patented Constant Force lift technology provides fluid, one-touch adjustments of the keyboard and monitor positions for personalized computing. Burn more calories by choosing to stand for periods of your work-day; periodic standing also promotes greater bone density and better sleep at night. WorkFit-S counteracts an increasingly sedentary workstyle.