These are custom-sized file bars for wooden cabinets. These are made-to-order file hanging rails that we modify to the specs of the drawer in your cabinet. If the file rails in your wooden cabinet are missing, if the drawers have slits for the bars to rest in, or even if you have metal cabinet and want the maximize the space in the drawer and you need special-size, universal bars to hang your folders, we can help. Available with or without brackets. Please email us or call 347-561-7587 for questions.