The full size adjustable stand-up desk provides generous work surfaces at two heights for maximum flexibility. Designed for easy height adjustment to suit your needs. The perfect companion for desktop, laptop or tablet computing. Mobile and adjustable to meet your everyday needs. Height of lower and upper shelves are adjustable together at 1" increments. It has durable steel frame with powder coat paint finish. Its easy to maneuver with four 3" furniture grade casters with 2 locking brakes.