Epiphone 57 Classic Alnico ProBuckers designed by Gibson in the USA built in Korea. These are what you get in a high end Epiphone Les Paul or SG import Guitar. This kit has a Pro Harness the volume pots coil split for single coil or full Probucker sound this has a plug in harness. The pickups are 4 wire and a ground so extra room needs to be made to the Routing holes for the harness it is worth the effort. Great upgrade for any guitar that needs to add some clarity & tone on a budget. Nothing cheap except the price as compared to their Gibson counterpart. These are factory direct parts without original packaing, instructions are not included, please consult your local luthier for installation