KRATOS SAFETY FA2050202 The KRATOS SAFETY Olympe-S2, Retractable fall arrester with polymer casing and webbing lanyard, It has 1 aluminium quarter turn-locking karabiner FA 50 201 22, gate opening 21 mm, and 1 aluminium quarter turn-locking hook with swivel FA 50 221 17, gate opening 17 mm.