Creative Tunings SCM SpiderCapo Mini - for Ukulele, Banjo and Mandolin The purpose of the Mini "Spider" is to Capo each string individually making possible hundreds of tunings without de-tuning your instrument The Mini Spider Capo is for narrow necked instruments. These include, but are not limited to: Banjo, Ukulele, Mandolin and Bouzuki Fingerboard width: 29 51mm Users report that because the Spider Capo clamps over the fingerboard, and not behind, it can also be used on the Mountain Dulcimer As banjo players in particular like to tune in different ways to start with, Spider Capo will multiply each tuning by the same factor making hundreds and hundreds of tunings available