Latchways Ladderlatch Device (left handed) c/w soft web strop (Towerlatch). Suitable for use on the Latchways vertical Ladderlatch or Towerlatch vertical wire safety systems only. This unit is attachable and removable at any point on the system. EN353-1: 1993. Weight 1.4kg. 1 No. person (150kg) maximum per device. The Manufacturer recommends a formal recorded examination by an authorised person other than the user, at least every 12months