Part Notes: 40/20/40 Split Folding, Seat Back-Left Seat, W/O Button, Shale;40/20/40 Split Folding, Seat Back-Right Seat, W/O Button, Shale;60/40 Split Folding, Seat Back-40% Side, W/O Button, Shale;60/40 Split Folding, Seat Back-60% Side, W/O Button, Shale