This is a Genuine Manufacturer Approved replacement part used on Waring Blenders. This part consists of Plastic Body and a Metal Blade. Please note the Coupling that drives the Blade is Sold Separately. Replacing this item is easy and does not require any Tools. • Simply remove the Jar Bottom • This will allow for the Blending Assem...Read morebly to be separated • Remove the Coupling and the Sealing Ring/Gasket • Replace the Blending Assembly with the new one • Reattach the Coupling and the Gasket • Secure the Blending Assembly with Jar Bottom/Collar