For all instruments. The wide pole pieces work for both humbucker and Trembucker string spacing. * Ultra high output humbucker built for aggressive playing styles. * Specifications Type: Dual Coil Humbucker Position: Bridge Cable: 4 Conductor Impedence: 16.8 k Resonant Peak: 5 KHz Magnet: Ceramic Bar Output: High * Recommended for punk, garage, thrash, metal and other heavy rock styles. * Players: Troy Van Leeuwen / Queens of the Stone Age (bridge), Mike Chlasciak / Halford (bridge), Whitey Kirst / Iggy Pop (bridge), Tom Read / Bodyjar * Will Adler & Mark Morton / Lamb of God (bridge) * Includes: GO-DPS Polishing Cloth & 3 Pick Sampler,Planet Waves Guitar Polish * 21 Day Real World Exchange Policy Purchase and install this pickup and check it out with your own gear, in places you normally play - concert halls, the studio, your bedroom - wherever. If you are unhappy with the pickup for any reason, you can exchange it for another Seymour Duncan pickup of equal or lesser value within 21 days of purchase. You pay only shipping and handling costs and any price difference for the replacement pickup. A return authorization is required, and the pickup must be returned in good condition, with the original parts and packaging intact. * 21 Day Real World Exchange Policy Purchase and install this pickup and check it out with your own gear, in places you normally play - concert halls, the studio, your bedroom - wherever. If you are unhappy with the pickup for any reason, you can exchange it for another Seymour Duncan pickup of equal or lesser value within 21 days of purchase. You pay only shipping and handling costs and any price difference for the replacement pickup. A return authorization is required, and the pickup must be returned in good condition, with the original parts and packaging intact.