The Cambro ESR21243151 is a durable shelving ledge designed for Camshelving® Elements. Measuring 21"W x 24"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 various environments. This shelving ledge enhances organization and stability, making it ideal for both commercial and residential use.