Guideline Braided Dacron Backing 50 lbs, Backing

Saltwater Fly Line Backing & Rigging - Rok Max

Backings - Guideline Fly Fish Canada

Backing FLY SHOP Europe

Dacron Backing Scientific Anglers

Fly Line Backing & Fly Line Accessories

Backing - Skitt Fiske

Braided Backing 20 lbs 100m Orange - Guideline AS

Backing for fly fishing

guideline – Maltby Sports

Scientific Anglers XTS Gel Spun Fly Line Backing, 50 lb Test, Yellow - 100, 150, 200, 250, 300, 400, 500 up to 3000 yds (100 yds) : Sports & Outdoors