I-Yensch bracelets are sets of two bracelets that, when worn by two different individuals, create a physical link between the two of them. If one is injured, the other also suffers the same injury. If one is killed, the other is also killed. The bracelets are even capable of compensating for vastly different physiologies.
These bracelets are often used in the Uncharted Territories to facilitate negotiations.
I-Yensch bracelets are derived from Farscape.