The Seymour Duncan TS-1 Triple Shot Flat Mounting Ring lets you expand your tonal palette by accessing three unique tones from a humbucker. This stealth pickup switching device allows you to access series, parallel, and split wirings with a standard humbucker via two switches on the mounting ring.The triple shot mounting ring is easy to install. Just solder your pickup leads to the attached small color-coded circuit board. That's it. Push the two switches towards each other for standard series wiring; away from each other for parallel wiring; and both towards one coil (either one) to shut that coil off.Use the Seymour Duncan TS-1 with nearly any humbucker pickup with four-conductor cable: Seymour Duncan or otherwise.Note: Will not fit nickel- or gold-covered Trembuckers.