Mobile and adjustable for comfort and productivity. Enjoy the productivity and health benefits of a moveable, stand-up workspace. Stand up desks promote better posture, reduced back and neck pain, a thinner waistline and other health benefits. Taking stand-up design to new levels, the Manual Adjustable Stand-Up desk offers a versatile two-tier design that holds monitors at eye level while keeping keyboards within ergonomic reach. A black laminate wood surface adds a stylish yet durable top and a reinforced steel frame securely supports both shelves at any height. Rolling casters, two with locking brakes, provide both mobility and stability. Features: • Height of lower and upper shelves adjust simultaneously in 1" increments • Two-tiered shelf design with double laminate wood surface • Durable steel frame with powder coat painted finish • Four 3" casters, two with locking brakes, for easy maneuverability and stability • Includes all hardware and tools required for assembly • Meets ANSI/BIFMA standards • Shipped ready to assemble Dimensions: • Overall dimensions of 24"W x 29"D x variable height up to 45.79"H • Upper shelf measures 24"W x 14"D with 33.98" - 45.79"H adjustable height range • Lower shelf measures 24"W x 16"D with 30.04" – 41.85"H adjustable height range • Bottom shelf measures 21"W x 16"D x 5.5"H