This is a specially drilled brass-plated hinge tailpiece, customized by C. B. Gitty for use with 4-string cigar box guitars. These make great low-cost tailpieces for CBGs, without requiring any potentially dangerous metal drilling. We include two matching mounting screws and a 2-page installation/usage guide showing you how to make use of these tailpieces. They are intended for use with ball-end guitar strings, though you could use loop-end if you ran the string back through the loop.
These hinges are 1 3/8" wide by 2" total height. See the second photo for an installation example. Also see our separate listing for the 3-string model, if that is what you need.