alongside a bank employee's seal. Rules for the size and design vary somewhat from bank to bank; generally, they contain a Japanese person's full name. A Westerner may be permitted to use a full family name with or without an abbreviated given name, such as "Smith", "Bill Smith", "W Smith" or "Wm Smith" in place of "William Smith". The lettering can be red or white, in any font, and with artistic decoration. Since mass-produced ginkō-in offer no security, people either have them custom-made by professionals or make their own by hand. They were traditionally made of wood or stone; more recently of ivory, and carried in a variety of thumb-shape and -size cases resembling cloth purses or plastic pencil cases. They are usually hidden carefully in the owner's home. Banks always provide stamp pads or ink paste, and dry cleaning tissues. The banks also provide small plastic scrubbing surfaces similar to small patches of red artificial grass. These are attached to counters and used to scrub the accumulated ink paste from the working surface of customers' seals. Mitome-in A is a moderately formal seal typically used for signing for postal deliveries, signing utility bill payments, signing internal company memos, confirming receipt of internal company mail, and other low-security everyday functions.Mitome-in are commonly stored in low-security, high-utility places such as office desk drawers and in the anteroom (genkan) of a residence. A mitome-ins form is governed by fewer customs than jitsuin and ginkō-in. However, mitome-in adhere to a handful of strongly observed customs. The size is the attribute most strongly governed by social custom. It is usually not more than in size. A man's is usually slightly larger than a woman's, and a junior employee's is always smaller than his bosses' and his senior co-workers', in keeping with office social hierarchy. The mitome-in always has the person's family name and usually does not have the person's given name (shita no namae). Mitome-ins are often round or oval, but square ones are not uncommon, and rectangular ones are not unheard-of; irregular shapes are not used. They can produce red lettering on a blank field (shubun) or the opposite (hakubun). Borderlines around their edges are optional. Plastic mitome-in in popular Japanese names can be obtained from stationery stores for less than US$1, though ones made from inexpensive stone are also very popular. Inexpensive prefabricated seals are called . Rubber stamps are unacceptable for