Set of New Old Stock, Russian Paper In Oil Capacitors. .015uf & .022uf @ 400v. Paper In Oil dielectric in a metal can with glass sealed ends. The item is new, never used, but does not come in original packaging. .022uf is a great capacitance for use with Humbucker Pickups in Neck and/or Bridge Position. Using a .015uf in the Neck Position Humbucker pickup allows more high frequency signal to pass than a traditional .022uf giving a brighter more treble sound. Especially nice if you are playing a Mahogany body guitar like a Les Paul. I use this configuration in my own Les Paul's.