WD's licensed Floyd Rose seven string bridge. Includes arm, locknut assembly and all hardware (springs, claw, screws, studs, etc.). Available in black, chrome (WDFR7C) and gold (WDFR7G)finishesImportant Dimensions:Overall Width - 105mmCenter to Center - 85mmCenter to Center string spacing - 10mmE to E - 64.4mm Specifications Overall nut width : 1 57/64 in. (48mm) E to B string spacing : 1.60 in. (40.7mm) Radius : 16 in.