Slug beer traps X2 (Norham Manor OX2)

Two unused beer traps.
You pour beer in the base and the lid keeps the rain out. Slugs drown (drunk) in the beer. Tip them out (disgusting) and refill with beer.
I have a can of elderly generic beer to go with each one if you would like.
They are plastic but have been in a corner of a damp shed for years so are dusty and the paper instructions (photographed) smell damp and musty.