The Rubbermaid Commercial Products undivided bus box is constructed of heavy-duty, commercial grade plastic. This utility box also has reinforced handles and bottom, as well as ribs, for extra strength. The extra strength helps with employee safety for heavy lifting in kitchens and slippery environments. Featuring rounded corners for easy cleaning, the bus box is ideal for collecting dishes and utensils in hotels, bars, and restaurants. These bus boxes are also good for utility storage in garage and basement. These bus boxes are also great for sensory play with adults and children. Toys and sand box usage along with cat/dog beds and general around the house cleaning and storage. Nsf Std. #2 certified and safe for commercial dishwashers.