This is likely a wiring kit from EMERSON CUSTOM (Emerson Custom). It's for a Telecaster and includes 500K Ohm pots and a 3-way switch. I bought it used and it was installed in a guitar, so the details are unknown. However, when I replaced the assembly, a music store told me it was probably an EMERSON product. It was working normally until I removed it, but I cannot guarantee its complete functionality. Please understand this before purchasing. Everything in the photos is included.