Read this sentence from the story:
He slightly raised his right hand, bound at the wrist by the shining "bracelet" to the left one of his companion.
Why does the author refer to Easton's handcuffs as "the shining bracelet"?
By describing the handcuffs positively, it contributes to the plot line about concealing the fact that Easton is a criminal.
By comparing the handcuffs to a bracelet, it contributes to the plot line that Easton's detainment is only temporary.
It implies that Easton does not take his situation seriously.
It develops Easton as an optimistic character.