This is a Tupperware 1866-2 container lid or base, crafted from durable blue plastic. This versatile piece can serve as a sturdy base for a round food storage container, a serving tray, or potentially a lid depending on the compatible Tupperware system. Its design features a round form with four integrated feet/handles for stability and ease of use. This item is an authentic Tupperware product, proudly made in the USA, and is a useful component for various kitchen storage and organization needs. This listing includes the single blue plastic Tupperware 1866-2 item as pictured. It is a genuine Tupperware part designed for functionality and longevity in your kitchen. Whether you're completing a set, replacing a lost piece, or starting a new collection, this item offers reliable food storage and serving capabilities.