Tray for markers big enough for several colors at once. Mounting requires time and patience but secures board firmly with bottom supports. Be prepared to drill through plaster or drywall (easy) and metal (for last step). Was easy quick and worth the effort to secure board to bottom brackets. All hardware in package. You’ll need an elec drill with ¼” and ⅛” bits and a Phillips head screwdriver or drill bit to drive included screws. Follow the sequence of steps in order on enclosed instructions.