Pull tight seal or cable tie with break-away tail

A flexible tie comprising:

• a head having a first cross-sectional geometry and configured to display at least one visual indicator on at least one side;
• a tail extending from the head in a longitudinal direction and having a second cross-sectional geometry different from the first cross-sectional geometry;
• a lock disposed on the head and including a passage configured to receive the tail;
• a plurality of barbs disposed on the tail and configured to pass through the passage in the lock in a first direction, and configured to be restricted from retreating through the passage in a second direction opposite to the first direction, each barb being separated longitudinally from adjacent barbs via a core section of the tail;
• and
• a tail break-point disposed on the tail and including a cross-sectional area, as viewed along the longitudinal direction, smaller than any other cross-sectional area of the tail as viewed along the longitudinal direction, a length of the tail break-point being longer than a length of the core section between adjacent barbs,
• wherein the tail break-point is an annular groove having the cross-sectional area extending from a first portion of the tail having a first cross-section to a second portion of the tail having a second cross-section, the cross-sectional area of the tail break-point being smaller than both the first and second cross-sections of the respective first and second portions of the tail.