This is EVERYTHING you need to install a REDactive pickup in a typical Jazz bass or P/J guitar.
You get the dual volume pots and a single .2uf tone pot, output jack assembly, battery lead assembly, a plug-n-play pickup lead and battery buss and all of the connecting wires you need. NO soldering required. An easy to follow illustrated guide is included.
This bag of parts represents a nice savings over purchasing all of the parts individually.