Squier by Fender Mustang Bass Duncan Designed split pickup set. Features the Duncan Design logo on the cover. Includes mounting hardware. For use in the Fender Japan Mustang, Squier Bullet Mustang, and Squier Vintage Modified Mustang Bass. Factory part on the Vintage Modified Mustang Bass. Afforable, quality pickup for a custom build. Measures: 1.721" (43.7mm) Pickup Width; 0.732" (18.6mm) L; 0.720" (18.3mm) H; 2.0" (50.8mm) Mount to Mount; 2.330" (59.2mm) Total Width (including mounts).