Polyester

Manufactured in 4,2 mm plastic monofilament diameter with flexible curve-guide head, curved head to avoid blockages and a large bronze pulling head.
Both heads the curve-guide and the pulling one go pressed and threaded to the plastic which offers a higher breaking load.

Breaking load: 30 KGF
Diameter: 3mm, 3,8mm y 4 mm.
Colour: Ø 3 mm Yellow, Ø 3,8 mm Black and Ø 4 mm Red

With coiled memory.
Fully insulation.

Video