(4x) Amarine-made Stainless Tournament Style Clamp on Fishing Rod Holder for Rails 7/8" to 1", Rail Mount Rod Holder

Ive got 1 1/4" rails should i get these or the ones for 1-1/4?

Would I be able to attach these to square rails on pontoon boat?

can you fight a fish in the holder or is it just for holding extra rods out of the way? My Montauk doesn't have ant gunnel holders for fighting fish.

What is the rod tube length