Ring & Chain - Heart Shape ( Gold )

A continuous loop of chain is displayed. 
A solid steel ring is threaded up the chain, then released.
It drops down the chain and visibly links at the bottom.
The spectators can try and try but they will not be able to do it!!
A real brain teaser that anyone can do, if they know the secret!100% examinable.
Complete with Chain, Ring and Illustrated Instructions