Welcome, you are looking at a great piece. This is the Seymour Duncan TB-12 Screamin’ Demon Trembucker.Wiring: 4-Conductor Magnet: Alnico 5. DC Resistance: 10.9k Ohm.The Seymour Duncan TB-12 Screamin’ Demon Trembucker is a medium output F-spaced humbucker that delivers crisp 80’s sizzle with a scooped midrange.The TB-12 features slightly overwound coils and Alnico 5 bar magnet, and uses a mix of pole pieces that include one row of standard adjustable screws and one row of Allen head screws.Trembuckers have wider pole piece spacing, perfect for symmetrical positioning under the strings of guitars with a tremolo bridge.Other features include nickel silver bottom plate, 4-conductor lead wire for multiple wiring options, and vacuum wax potting for squeal free performance. We are an authorized Seymour Duncan dealer.Don’t pass this by.