This is actually a Meniscus product. We had these made before BG had made their own. It is made of black, powder coated steel and measures 4.5" x 4.5". There is a version for the Neo 8 and they match up well aesthetically together.
These are attached by glue to the driver rivets and then sealed around the edge of driver frame. We will attach them at no charge if you are buying both driver and plate.