A
safe (also called a
strongbox or
coffer) is a secure
lockable box used for securing valuable objects against
theft and/or damage from fire. A safe is usually a hollow
cuboid or cylinder, with one face being removable or
hinged to form a
door. The body and door may be
cast from
metal (such as
steel) or formed out of plastic through
blow molding. Bank teller safes typically are secured to the counter, have a slit opening for dropping valuables into the safe without opening it, and a time-delay combination lock to foil robbers. One significant distinction between types of safes is whether the safe is secured to a wall or structure or if it can be moved around. A less secure version (only suitable for
petty cash) is usually called a cash-box.