Ergonomic work center offers a fully articulating keyboard and mouse platform that allows you to alternate from sitting to standing. Adjust the platform anywhere from 1" above to 4" below the work surface. The platform also swivels from side to side, and angle adjusts 21-1/2 degrees up and down for the perfect fit. The CPU holder is width-adjustable and can be attached to either side of the workstation. Move the Z-25 easily on 2" casters (two locking). The frame is made of steel with a black powder-coat finish for superior strength and durability, and the shelves are finished in scratch-resistant black laminate.