OFFSET
The press-in depth is the distance between the center of the rim and inner contact surface of the wheel rim to the wheel hub.
If the rim has a press-in depth of "0", then the inside contact surface of the wheel rim to the wheel hub is exactly in the center of the wheel rim.
A positive press-in depth "+35" on the same wheel rim width means the wheel rim is goes further in toward the center of the vehicle.
A negative press-in depth "-35" on the same wheel rim width means the wheel rim is goes further out, away from the center of the vehicle.