Backpack Hook for Steelcase Whiteboard Divider

Our new office has 4' tall Steelcase whiteboard cubicle dividers this is a hook for hanging a backpack.

Use the original Bolt that holds the tray on. The washer is for the other end to make the tray level. I used two hooks, so I have not printed or tried the washer, I assume it works, it's just a washer.