Just got one from B&Q only £25
Stanley Pro Mobile Tool Chest, 1-97-503
huge capacity and lockable both ends of the lid
ideal for boat fishing

working on a couple of adjustable clips to fit on the side that will hold my rods when motoring between drifts
will post pictures when done (if successful or a failure)

Brother-in-law uses a tool box (without wheels) for bank fishing, strong enough for him to sit on.

had 1 for years when i fished with clubs , ended up carrying too much , it`s now in the attic holding my TOOLS

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it`s nice to catch fish , but not essential !