Use this height-adjustable mobile laptop caddy to move, stand and sit for a healthier workday. Gas-lift-operated arm raises the desktop up to 40.9" standing and lowers it to 28.7" for sitting. You can roll your desktop where you need it and sit or stand in offices or meeting rooms. Four easy-rolling casters swivel to overcome corners and busy hallways. Two of the casters lock for stability while you work. Sturdy base includes two generously spaced legs on the working side so your legs fit comfortably. The two legs on the public side feature a short extension and are close to each other so you can pull up to most desks and tables. Durable, black, stain-resistant laminate top includes a tablet holder and cup/pencil holder. Base is made of steel tube and aluminum base with a powder-coat finish for durability.