Use this Height-adjustable Mobile Desk with convenient holders to move, stand & sit for a healthier workday. The gas-spring mechanism on the metal post raises the desktop up to 43-5/8" standing & lowers it to 30" for sitting. Squeeze lever to adjust height smoothly. High-performance, Weathered Charcoal laminate top is scratch-resistant for a lasting worksurface. Desktop is equipped with a built-in cup holder & tablet holder with three cable holes. You can roll your desktop where you need it & sit or stand in offices or meeting rooms. Four easy-rolling casters swivel to overcome corners & busy hallways. Two of the casters lock for stability while you work. Simply flip lock down to engage the brake. Metal base is powder-coated for durability.