It is a genuine item that is supplied by the original equipment manufacturer for use with a Bostitch stapler. This is an identical replacement for a missing or a faulty wear plate that was originally installed on a new unit. It helps to ensure a tight fit for the blade guide, please make sure to refer to the owners manual and the appropriate diagram of your model for the correct installation of the new plate. Keep in mind this high-quality component is made of durable metal and is sold individually.