What’s this called please?

[Andyjp1]

Morning all,

just a quick one, what’s one these silver tightening

devices called please?
Thanks

 

[steadyon]

Jubilee clip. Best to use a stainless steel one near water.

 

[rpm]

Please put the pet gorilla back in the cage before fitting the new one!

 

[WC1]

Looks like one of those "guaranteed to leak eventually" self cutting outside tap kits...