A zip line is a transportation system or you can say a piece of recreation equipment consists of a cable stretched between points of different altitude, a harness, a pulley for attaching a rider, who moves by gravity a person can travel down the wire on a pulley that minimizes friction to help the rider expedite while using the natural decline of the slope
When it comes about the weight of a rider, frankly speaking, zip-line riders should be between 60 and 275 pounds.