The Cambro CBR21303151 is a durable shelving ledge designed to enhance your Camshelving® Basic Plus system. 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, the soft gray finish offers a sleek and professional appearance while ensuring long-lasting performance. This shelving ledge provides added support and organization for your storage needs, making it an essential addition to any commercial kitchen or storage area.