These pickups are going to deliver a nice balanced midrange & low end with a classic jazz bass snarl and punch.
They have Alnico 5 magnets and gives superb overall brightness.
This comes with all the hardware (mounting screws, pickup height adjustment tubing, and wiring instructions) that you'll need to install.
Here are some of the more nitty gritty tech specs:
The output rating (bass/mid/treble) for the neck (6/4/4) and the bridge (6/4/4).
The DC resistance for neck is 9k ohms, the bridge is 8.8k ohms