This is an original OEM Rubbermaid Commercial 2957 wastebasket lid, designed for durability with all-plastic construction that won't chip, dent, or rust. Its free-swinging design allows for hygienic waste disposal, while the rounded shape and corners facilitate easy cleaning. The domed construction does not reduce the wastebasket's capacity and is intended for use with Rubbermaid 2957 wastebaskets (sold separately).