This shelf is designed to fit most front-load washers and dryers with average-height rear ledges and control panels. Low-profile or angled control panels may not provide a secure fit. The arms have a fixed length of 18.75 inches between the attachment points on the shelf, ensuring a secure fit over most washers and dryers, with the ability to bend the arms for a custom fit that tightens against the back panel. Made from durable steel with a protective vinyl coating, the shelf prevents scratches on your washer and dryer. It can hold up to 25 lbs of laundry supplies like detergent, dryer sheets, and fabric softeners. The shelf measures 10 inches in depth and 26.5 inches in width, so be sure to measure your appliances before purchasing. It also requires space behind your appliances for installation.