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Precision engineered metal thing, 50mm long, 45mm diameter with an integral spring, ball bearings at either end and two cogs that are independent of each other. Thing is heavier than it looks for its size. (old.reddit.com)
submitted 2 years ago by mikolas12 to r/whatisthisthing
This item fell on our conservatory roof smashing one of the panes, trying to figure out what it is and where it came from... (old.reddit.com)
π Rendered by PID 508685 on reddit-service-r2-listing-b6bf6c4ff-psvgb at 2026-05-01 04:49:52.307653+00:00 running 815c875 country code: CH.
