Rugged Mount Sandwich Plate Hardware Gas The Onyx EDC comes complete

The Onyx EDC comes complete with three replacement blades

Coated fabric on bottom of mattress for increased durability

and roll up evenly and efficiently for hassle-free stowage

making them perfect for smaller vehicles

8'') high from the underside of the Slimline II Rack Tray

Rugged Mount Sandwich Plate Hardware Gas The Onyx EDC comes completeIf you have a roof rack or crossbars that you want to mount your Rugged Mounts on to but you don't have channels to slide carriage bolts into, then this is the hardware that you will need. The long bolts and bar make it so you can "sandwich plate" mount around your bars or rack. This kit comes with 4 plates and 8 bolts, washers, and nuts.