The Cambro CBR2154151 is a Camshelving® Basic Plus Full Shelf Rail Kit designed to enhance your shelving system. Measuring 21"W x 54"L x 4-1/4"H, this kit includes two double level side rails and two double level end rails, along with side and end brackets for easy installation. Constructed from durable polypropylene in a soft gray color, it provides reliable support and organization for your shelving needs. Ideal for commercial kitchens and storage areas, this rail kit ensures items remain securely in place while maximizing your shelving space.