This is a set of twelve shiny brass-plated square hinges, with matching mounting screws (48pcs. #4 x 3/8" brass Phillips round-head). These are great for box making & woodcrafts, and for replacing the weaker hinges that come on most cigar boxes. With some drilling these can also be used as tailpieces on cigar box guitars, though they are fairly thin metal and aren't really made to stand up to too much string tension. See the photo with the ruler for sizing information.