The Stand Up Desk Store Clamp-On Adjustable Height Desk Shelf Monitor Stand - Black, 60" reduces clutter on your standing desk while placing your monitors at a comfortable height. Features include easy, tool-free attachment to the rear edge of your desk and adjustable height for personalized ergonomics. Overall dimensions are 59" W x 11.25" D x 5" to 7" H. 60 lb. weight capacity. Made of powder-coated steel. 5-year limited warranty against defects. Stand Up Desk Store is based in the suburbs of Chicago.