PN 231(A) Forked Restraint Lanyards Ref : PN 231 (A) Made of 12mm dia 3-strand Twisted Polyamide rope. Length 1.5 m, 1.8 m, 2.0 m. PN 112 at one end and two Steel Scaffold Hooks PN 131 at other ends. Conforms to EN 354:2010.