The BenchMate Bench Top Mounting Adapter is needed if front of bench is not relatively flat or if it is too thin to hold the Fixed Mounting Plate.
The Bench Top Mounting Adapter screws into the top of the bench and holds the Fixed Mounting Plate (sold separately)*. Made of stainless steel. All hardware included.
*The Fixed Mounting Plate is required to hold all BenchMates and accessories. It comes with all BenchMate packages but is also sold separately