This product is made from 1/4″ aluminium. All joints are hand welded and ground smooth, mounting holes are pre-drilled and counter sunk. The Kit Comes with Stainless steel mounting screws, j bolts, star knobs with brass insert and hold down bracket. tray will also have a evo padded bottom to cushion the batteries and is open to allow water drainage. These Trays are available in a 24v or 36v setup, or single battery trays, Phoenix decal not included.