010016 is one of a series of parts used by the Presto Pressure Cooker. This part is a replacement gasket for use with the Presto Pressure Cooker. The gasket is designed to provide a seal between the lid and the body of the pressure cooker to create a safe, airtight cooking space. This part is compatible with certain Pressure Cookers and Pressure Canners manufactured by National Presto Industries. This gasket is made of durable plastic material and is gray in color.