They're often brass and sometimes have a little handle you use to pull the actual file drawer out! I've just made up some Ikea 'Fira' mini drawers sets and I want to store nails/screws/ odds'n'sods in them but I don't want to write directly on the drawer fronts. The doodahs I'm looking for are possibly screw on or even stick on. You write the contents on a bit of card and slide them in thus can change the bit of card when the contents change! Hope someone can help as it's impossible to find them without a name!