The Bronco Cargo Net (F4TZ9855066A) is a reinforced 2-layer pocket ~56x13", and is probably rarer than the cargo cover (F4TZ9845440AAK). The net hangs on 4 black knobs screwed to the rear corners of the bedwall panels.

I only have 1 net (for my '93EB), but I have several knobs, including some tan (not the correct color for Broncos, but otherwise identical).

Compare to
Keeper 05060