Guided type fall arrest system MAS SK 12 EN353-2 with a 10 m long rope and a diameter of 12 mm. This free-running fall arrest system has a sewn-on energy absorber that reduces the impact forces that occur during a fall. The device is supplied complete with a 12 mm diameter kernmantle rope. It is mainly used in climbing areas so that the user has both arms free for tasks such as material transport or when the anchorage point is further away from the workplace.