Part Of The Lorell Electric Height-Adjustable Workstation, This Sit/Stand Desk Frame Adjusts Quickly, Smoothly And Quietly With A Gentle Push Of A Button. Adjustment Speed Is 1.3" Per Second. Sit-To-Stand Design Is Perfect Way To Increase Your Circulation, Comfort And Productivity. It Adjusts From 27" To 46" High. Maximum Capacity Is 275 Lb. Flex Frame Base Adjusts For 48" To 72" Wide Tabletops (Sold Separately). Two-Tier, Extended-Height Base Is Made With Two Square Column Legs And Standard 27-1/2" Foot For Added Stability On Tabletop Depths Ranging From 24" To 30"..