The Winco PL-57C is a durable bus box cover designed to fit standard dish boxes. Measuring 20-1/4" x 15-1/2", this cover is made from high-quality polypropylene, ensuring long-lasting use and resistance to wear. Its gray color provides a professional appearance while effectively protecting contents from dust and debris. Ideal for commercial kitchens and food service environments, the Winco PL-57C is sold in quantities of 12, making it a practical choice for bulk purchasing.