A basic set is the main portions of the seats, bottom and tops. For example:
There are exceptions to these statements but they are noted in the descriptions of each seat cover.
Bench seat with adjustable headrests and a fold down armrest.
This seat is a 60/40 split bench seat with fold down armrest/cup holder.
This seat is a 60/40 split bench with a fold down armrest and 2 adjustable headrests.
This seat is a bench seat with a fold down armrest with a shifter notch in the seat bottom and 2 adjustable headrests.