Double-locking, self-locking safety hook. Openable 55 mm. Material: zinc-plated steel. Weight: 500 g.Application: working at heights and on roofs.Standards: – EN 365: 2004 – Personal protective equipment against falls from a height. General requirements for instructions for use, maintenance, periodic examination, repair, marking and packaging – EN 362: 2004 – Personal fall protection equipment. ConnectorsClass A – EN 363: 2018 – Personal fall protection equipment. Personal fall protection systems – EN 364: 1992 – Personal fall protection equipment. Test methods