BADASS™ BASS II The BASS II is a precision, harmonically-tunable direct replacement bridge designed to enhance Fender Jazz and Precision Basses. The special music metal material was engineered to provide synergistic resonance mass and the most efficient sound transfer synergistic resonance massand the most efficient sound transfer for tremendous increase in attack, sustain & clarity of notes without changing the tone of the wood. The BASS II replaces the original bridge, and eliminates the inaccurate harmonic tuning caused by "round" shaped, and "roller" saddles of other bridges, interference of string ends contacting the bridge saddles, and unwanted side movement of strings & bridge saddles for the purest tone/sound transfer possible. Our saddles are far more precise than "round" saddles for definition of music notes. IT IS ESSENTIAL THAT A PROFESSIONAL REPAIRPERSON FILE THE SADDLES TO PRECISELY FIT EACH STRING & CALIBRATE THE NOTE HARMONICS for the best sound transfer through the special bridge metal into the bass tone wood. The BASS II may also be used on other basses, but will require modifications. Fender, Jazz & Precision are registered trademarks of Fender Musical Instruments.