This is the same humbucking pickup that the Black Sabbath guitar legend uses on his signature model Gibson SG. This was the first signature pickup designed and built by Gibson and it's unlike any of their other pickups. The closed cover design means that it's built to really pack a punch with razor-sharp highs, blistering mids and tightly focused low end. The magnet configuration and special wire winding ensure maximum sustain, while the wax and epoxy potting protects against noise and unwanted feedback. One-of-a-kind pickup for one-of-a-kind guitar players!