Seymour Duncan SHR-1b Hot Rails Humbucker Bridge Pickup in White. This pickup is a humbucker that replaces single coil Strat pickups. It delivers a fat, full sound that's needed for playing harder rock music. It's one of the highest output pickups available from Seymour Duncan.?The two thin blades with powerful coil windings combine to give you a raw, distorted work and roll sound with incredible sustain. This pickup responds to the subtlest finger movements. Great for hammer-ons. Four conductor shielded cable lets you split the coils electrically: in phase or out of phase, series or parallel, with or without humbucking effect. It is a direct replacement and requires no guitar modification. Wiring schematics and mounting screws included.   Specs Four Conductor wiring 16.9k Resistance? 3.5KHz Resonant peak Ceramic bar