This is the fiberglass.
There are some nice softer blanks in this class.
we use for tog, striper, surf

alot of great uses.
here is a write up

E-Glass Earned Its Place In History
This material is structurally the most durable of the fiberglass family. The glass properties are expressly matched to each unique application such as cranking rod blanks for bass; mooching and downrigger rod blanks for salmon, shark, tuna, stripers and king mackerel. We use the same epoxy resins and composites material technology in these rod blanks as we do in our graphite models to offer you lighter weight and improved sensitivity over other manufacturers fiberglass rod blanks.