PENN Pursuit IV Inshore Spinning Fishing Reel, Size 2500 Sporting

Quantum Solo Spinning Fishing Reel, Anti-Reverse, Reversible, 3

Shimano Sahara Spinning Fishing Reel, Right Hand/Left Hand, Size 2500

13 Fishing Source F Spinning Fishing Reel, Right Hand/Left Hand, Size 3000

PENN Pursuit IV Inshore Spinning Fishing Reel, Size 2500

Spot On Xtreme Combo — Spot On Fishing Tackle

Penn Pursuit IV LE Spinning Combos – Tackle World

PENN Pursuit IV Spinning Fishing Reel並行輸入品

PENN PURIV6000902MH Pursuit IV Combo Black/Silver 9

Pursuit IV Combo Black/Silver 9

Penn Pursuit IV Spinning Reel, 6000

What does a reel's size number actually mean? Is it not the recommended weight of the line? (Story in captions) : r/FishingForBeginners