Built to tangle less with the slight stretch in the line, with a durable built-in fluoro core to reduce the cord from tearing. Conventionally, there was a limit to the amount of firmness due to the entanglement of lines and jigs with assist hooks. In order to eliminate this, the material core has a built-in "add-on manufacturing method" fluoro. (No clearance!)
The material is PE, which has high tensile strength without deterioration from ultraviolet rays. Excellent compatibility with instant adhesives and excellent retention!