The Faithfull Brick Line Runner is a fast and efficient alternative to traditional line blocks. Simply tie your line onto the line runner and clamp the unit over your working material using the spring-loaded jaws. The body is made from durable engineering plastic with a stainless-steel spring, making it weather-resistant and capable of withstanding on-site conditions. Suitable for use on materials between 90mm and 120mm. It also features anti-slip pads that firmly adhere to the surface of your working material.