Seymour Duncan SENTIENT RAIL Guitar Neck 7 String Humbucker (Black)Introducing the Rail Series from Seymour Duncan, where classic pickups meet innovative rail design for modern players. This collection features JB Rails, Jazz Rails, the Hot Rodded Rails Set, Nazgl Rails, Sentient Rails, and the Nazgl Sentient Rails Set. Each pickup retains the revered characteristics of our originals while infusing them with the clarity, tightness, and sustain of rail design, making them ideal for high gain applications. The JB Rails