PN 231(A) Forked Restraint Lanyards Ref : PN 231(A) Width & Made of – 11mm Kernmantle Rope. Length – 1.5m, 1.8m, 2.0m. Attachments – PN 112 at one end and two Steel Scaffold Hooks PN 136 at other ends Conforms to – EN 354:2010