they range from 2 weight to 12 weight, 12 being the heaviest.A 5wt is fine for smallies, and gils. Your line should be matched to the rod, ie: a 5 wt rod should run a 5wt line, (+ or -) a line wt.Some rods are stiff, some are soft for their respective weight rating, hence the (+ or -) a line wt.