Welcome, you are looking at a great piece. This is the DiMarzio DP181 Fast Track 1 Pickup in Black.Wiring: 4-Conductor. Magnet: Ceramic. Output mV: 191. DC Resistance: 5.78k Ohm.We have additional colored single covers available for a $5 additional charge.“The Fast Track 1 is hotter and more muscular than The Cruiser, but it’s still very bright and clean sounding- not at all like a full-size humbucker. The dual-blade continuous magnetic field creates an even string balance with very little magnet-pull, eliminating the “out-of-tuneness” common to rod-magnet designs. The Fast Track 1 pickup’s power (double the output of a standard single-coil) makes it highly recommended in combination with medium- to- hot full-size humbuckers. You can also put a whole set of Fast Track 1 pickups in a Strat style guitar, or create custom sets with any of our other dual-blade models.” We are an authorized DiMarzio dealer. Don’t pass this by.