The Parts Shop Replacement Thermos Stopper is designed for the Stanley Classic Vacuum Insulated Wide model, with a part number of 1056288. Made of plastic and silicone materials, this green stopper is 67.6 ounces in size and weighs 0.07 pounds. It is a cylindrical shape, perfect for hand washing and dishwasher safe for convenience. The stopper features insulation properties, making it a practical and durable choice for those in need of a replacement part for their thermos.