High-density polyethylene bus tubs are built to last! These Polypropylene containers are engineered for rigorous and continuous usage. All bins are super easy to clean and dishwasher safe. Virgin grade materials afford lifetime protection against bacteria, mold, mildew, and product degradation. All-purpose bins provide a storage, cleaning, and transportation solution for multiple applications. Built in handles are ergonomically designed for comfortable and easy-grip handling. All bins nest when empty saving valuable workspace.