This is a set of single-coil pickups that came with a Telecaster-style guitar kit purchased from a DIY guitar kit specialty store. They are unbranded and likely ceramic. Screws and springs are also included. Perfect for experiments, DIY projects, or modifications. I bought and used different pickups, so I haven't touched these since they arrived. Therefore, I haven't confirmed their functionality, and they are sold as junk, with no returns or exchanges accepted.