The Cambro CPR1830151 is a premium shelving ledge designed for Camshelving® systems. Measuring 18 inches wide, 30 inches long, and 4-1/4 inches high, this kit includes two double-level side rails and two double-level end rails, along with the necessary 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, enhancing both functionality and aesthetics in any storage area.