This self-retracting lifeline has a wire of 7m. It has a housing made of highly-resistant polymer with a galvanised steel wire rope of ø4,5 mm. Braking system with impact force below 6 kN. It includes a shock absorber. It bears up to 140kg. It is a personal protective equipment against falls, designed to brake and reduce the shock provoked by braking, preventing the user from being damaged.