bridge and tailpiece set, 7-string, with studs, 16&;quot; radius, stringspacing 62,6mm, goldplated tune-o-matic bridge with taipiece for 7-string guitar. specifications bridge diameter anchor: 12mm length anchor: 19,5mm thread studs: M8 diameter studhole in bridge: 6mm spacing studs: 84mm stringspacing B-e: 62,6mm radius: 16; wire retainer: no saddles notched: yes finish: goldplated tailpiece diameter anchor: 12mm length anchor: 19,5mm thread studs: M8 spacing studs: 91mm finish: goldplated