Fall arrest device for working on edges with minimum arc radius of 0.5 mm. Can be used vertically or at an angle of 20° to vertical. Horizontal use without using an additional line between the end of the belt and the harness. Includes ESD (Energy System Dissipater) technology, allowing the equipment to absorb a fall even when the belt is fully unrolled. On the Blocfor 1.8A EVO ESD, the ESD shock absorber is attached to the retractable belt. The belt of the Blocfor 1.8A EVO ESD is attached to the anchor point of the harness via the M47 connector. The Blocfor 1.8A EVO ESD housing is connected to the anchor point on the structure.