EXTRA WIDE STANDING DESK: Go from sitting to standing in seconds with the Tranzendesk Dual full size stand-up desk! The ergonomic 55 desktop with shelf promotes a more active, ergonomic workday ERGONOMIC MONITOR STAND: Whats better than one level? Two levels! The built-in 55 desk shelf keeps up to 3 monitors at eye-level to help prevent neck pain and free up desk space HEIGHT ADJUSTABLE: This sit to stand desk raises and lowers with an easy-turn crank, adjusting to your ideal ergonomic height - up to 47.5 inches high HIGH QUALITY DURABILITY: The Tranzendesk standing desk with shelf features a sturdy steel frame with a scratch-resistant powder-coated finish for years of dependable use MOUNT CRANK ON EITHER SIDE: The removable crank can be mounted on either right or left side of your desk you decide! Store seamlessly under the desktop when not in use