The Jack Bright Ester fishing line features excellent sensitivity, with immediate command execution and the transfer of information to and from the tackle. It is considered revolutionary in the field of Finesse and Ultra Light Fishing, combining characteristics of a Monofilament. It is invisible to fish, with a smooth texture and resistance to contact with rocks.

Its outer coating reflects sunlight, facilitating its visibility during sunny days. This property is critical for fishing in narrow strips of rocky terrain, as well as for use during night fishing. Jack Bright offers the specific weight of a Fluorocarbon, with low wind resistance, allowing free movement and sinking of the lure.

The Jack Bright line does not absorb water and its performance against abrasion is similar to that of a Fluorocarbon. Every stimulus from the silicone lure is transmitted directly to the rod. The package includes instructions for the knot (Triple Eight) for connecting with leaders.

Due to its sensitivity, it is recommended that the reel's drag be nearly free during fishing. Since the line has no elasticity, the use of a Fluorocarbon or Nylon Shock Leader is suggested to absorb initial shocks. Proper adjustment of the drag also allows for the non-use of a Leader. The Jack Bright requires skill and experience for proper use.