Add sustain, resonance and improved attack without significantly altering your tone when you add this precision manufactured HiMass bridge to your 4-string bass. The brass baseplate and machined saddles impart warm, authentic vintage-style tone with .75″ string spacing for a familiar playing feel. Precision manufactured as a direct drop-in replacement for vintage-style Fender models; this bridge mounts via five screws.Mounting hardware not included.