Cigar Box Nation - These string retainers were originally developed for Floyd Rose trem systems, but they're also perfect for cigar box guitars. More info here: https://www.cbgitty.com/guitar -instrument-parts/other-hardware-parts/3pc-string-retainer ...
![Amazon.com: Musiclily Brass Guitar String Retainer Bar for Floyd Rose Tremolo System Electric Guitar,Black(2 Pieces) : Musical Instruments Amazon.com: Musiclily Brass Guitar String Retainer Bar for Floyd Rose Tremolo System Electric Guitar,Black(2 Pieces) : Musical Instruments](https://m.media-amazon.com/images/I/61rZbhSacfL.jpg)