This TROLLEY line is a running line with a length of 15 meters, designed to be attached to walls or trees. It is equipped with a shock-absorbing spring that protects the dog from injury during movement. The product has a plastic cover that serves to protect against corrosion and makes cleaning easier. The running line also includes a running roller with a length of 3 meters. It is easy to attach to trees and walls and is colored in a red hue. Overall, this TROLLEY line offers a combination of shock absorption, durability and practicality in outdoor environments.