The quarter-inch diameter pole pieces expand the magnetic field and extend the frequency ranges for fat, full, punchy sound with tremendous mid-range presence and maximum output. Though often used for heavy rock tones, this pickup gives amazing tonal versatility to a single pickup instrument making this the most popular Basslines pickup. Includes logo covers. <br><br> Often used together with STC-3M3 and -3M4 Tone Circuits for optimal tonal control. <br><br> For warmer toned ash, alder or basswood body instruments. Works especially well with rosewood fingerboards.