The Cambro ESR21303151 is a durable shelving ledge designed for Camshelving® Elements. Measuring 21"W x 30"L x 4-1/4"H, this kit includes one double level side rail and two double level end rails, along with the necessary side and end brackets for easy installation. Constructed from high-quality polypropylene, it features a soft gray finish that complements any environment. This shelving ledge enhances storage efficiency by providing additional support and preventing items from slipping off shelves, making it ideal for commercial kitchens and storage areas.