Ergotron 24-280-926 WorkFit-PD Sit-Stand Desk with 19.5-Inch Height Adjustment Improve your energy and productivity by standing or sitting as you work, and then switch positions whenever you choose. Safe, easy-to-usecomes fully assembled and offers effortless operation Designed to meet North American and European ergonomic standards On-demand sit-stand workstation-improve your energy and productivity by standing or sitting as you work, and then switch positions whenever you choose. Safe, easy-to-use-comes fully assembled and offers effortless operation Designed to meet North American and European ergonomic standards