bridge and tailpiece set, 12-string, with studs, 12&;quot; radius, stringspacing 54,7 mm, chrome tune-o-matic bridge for 12-string guitar specifications bridge diameter anchor: 12mm length anchor: 19,5mm thread studs: M8 diameter studhole in bridge: 6mm spacing studs: 73,5mm stringspacing E-e: 54,7mm radius: 12&;quot; wire retainer: no saddles notched: yes finish: chrome tailpiece diameter anchor: 12mm length anchor: 19,5mm thread studs: M8 spacing studs: 82mm finish: chrome