Footage, right, shows the group putting down their takeaways and unbending the thick metal hoop which had been damaged when a car reversed into it.

The swivel consists of two parts that twist freely, each with a metal hoop on the end.

She carefully guided the metal hoop but got a buzz when it touched a hard part.

A buben consists of a wooden or metal hoop with a tight membrane stretched over one of its sides (some bubens have no membrane at all).

The two skin heads are lapped onto metal hoops placed over the open ends of the body and secured by rope counter-loops.