Marshalltown M631 Braided Nylon Masons Line Fluorescent Pink 250ft The Marshalltown M631 masons line is used to create straight lines and a level surface when laying out posts, patios, footings and more. It has been heat set for increased stability and remains unaffected when in contact with mortar, oil, mildew or water. Its fluorescent pink colour makes it extremely visible on site. Features: Heat set after winding to stabilize The fluorescent pink colour makes it extremely visible Not affected by mortar, oil or mildew, will not absorb water For staking out sites before concreting, landscaping or laying bricks and blocks Specification: Core: 4” (100mm) Colour: Hi-Vis Pink Line Length: 76m/250ft