Back in the early 80's the idea to add a humbucking pickup to a Stratocaster* caught fire. In response to that demand we released two pre-wired combination systems, the SA/SA/81 and the SA/SA/85. Since then we've added just about every conceivable combination you can think of, and they're all available factory pre-wired. Once you've decided on the system you want, it can either be fully or partially assembled depending on how your guitar is setup. Since all EMG's use the Quik-Connect system you can change your system at any time without any soldering. Package Includes: EMG's exclusive Quik-Connect™ cables (3) Prewired control set including volume 2 tone controls 5-way selection switch (black & white knobs) Output jack Battery clip Screws Springs (for sets with EMG-89, substitute push/pull control for volume control) Cap Cover Options Available: Black White Ivory Registration Information