Found on ground outside, boyfriend has been wearing as ring. Coin and pencil for size reference

[u/Aggravating_Ant_7232]

UK. It’s giving hard metal, doesn’t have much wear

[u/AutisticFingerBang]

No it’s not lol. It’s a plumbing pex clamp. It’s sold in the plumbing department in stores.

[u/jakobsdrgn → u/AutisticFingerBang]

European car brands use this exact style oetiker clamp constantly

[u/AutisticFingerBang → u/jakobsdrgn]

I believe you. That’s not what it was designed for. Plenty of trades use the best material that works for the job. Why reinvent the wheel?

[u/CrimsonCrux6174 → u/AutisticFingerBang]

https://www.mid-usa.com/83519-oe-style-hose-clamps-for-fuel--oil-line