A. The "9" means that this rod will use a 9-weight fly line

B. The "90" means that the length of this rod is 9 feet, 0 inches

C. The "-4" means that this rod comes in 4 pieces so you can pack it small to use for travel (if a rod model does not have a "-3, -4 or -5" suffix, that simply means that the rod comes in a 2-piece configuration)

D. The "TCR" is the rod family it belongs to, TCR means Technical Casting Rod.

Next, go to our helpful How to Select a Rod page and the following tip and resources sections. Good luck and fish on!