I often find these metal cylinders in the streets of London: a silver-colored tube with a round tapering at one end and a hole with no thread at the other.
What are they?
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Sign up to join this communityI often find these metal cylinders in the streets of London: a silver-colored tube with a round tapering at one end and a hole with no thread at the other.
What are they?
These containers are nitrous oxide canisters
https://www.talktofrank.com/drug/nitrous-oxide
https://en.wikipedia.org/wiki/Recreational_use_of_nitrous_oxide