RIO Fly Line Backing
RIO’s traditional Dacron braided backing features high strength and low stretch and is unsurpassed in quality.
-Good compromise between thinness and the ability to make blind splice loops
-Easier to knot than brands that are very thin but have too tight a weave for a blind splice loop
-30lb, 100yrd Spool
* A good rule of thumb is to add backing up to the center screw of your retrieve handle on your reel.
2.5/8" Diameter x 5/8" H