Fiber ropes are introducing traditional steel wire ropes such as elevator ropes and crane hoisting ropes. The advantages of fiber ropes are obvious like low weight, non-conductivity, easy and clean handling, non corrosive, to just name a few. Some rope may even require smaller drums and sheaves that are compared to their steel cousins. It has an incredible fatigue life, far higher than ropes made from steel. The trick is to provide equipment which ensures that fiber rope can perform as intended. The synthetic fibers can not be quantified by sqinch of material, and as such the old steel engineering terms can not be applied. The fiber rope community describes ft.lbs of energy absorption per lbs of rope.