Encased in lightweight tone-wood, SG-1 ensures the natural amplified sound of your guitar without modification to the instrument. Held in place by the tension of tuned strings, SG-1 installs safely and securely between the bridge saddle and pins. SG-1 may remain installed when not in used. SG-1 comes with a complimentary detachable and easily replaceable 1/8’’ to 1/4’’ cable.