2|5 Union SThe 2 5 Union set uses alnico 2 on the trebles, and alnico 5 on the bass side. Using only the best materials, the 2 5 Union S set features heavy formvar wire, fiber bobbins, and cloth pushback leads. The neck and bridge are wound clockwise with magnets North up. The middle pickups is RW RP. USA made black vulcanized flatwork USA made 42 gauge heavy formvar wire Flush cast alnico 2&5 magnets USA made cloth leads Wax potted Handwound & Handmade in