This is an OEM replacement part for Waring blenders. This lid fits on top of the jar to keep the contents in while blending. This lid is made of rubber and plastic, it also includes the center lid. This particular lid is designed to fit the glass jar (Part Number: 003573). No tools are required for replacement. Just push the lid onto the jar, twist off the center lid for cleaning.
This blending assembly is an original replacement for a Waring blender. The purpose of the blending assembly is to break down food and liquids that are added to the blender. Made of stainless steel this blending assembly is sold separately.