Material: glass fiber nylon Width: about 4mm/0.2in Excellent material: The carpenters string line is made using tough twisted nylon, which is tough and durable, resistant to abrasion, and can be used for a long time. Suitable for machinery: The sturdy structure quality of nylon builders line ensures that the product is not easy to divide and does not go offline, so you can rest assured to use it with machinery. Line characteristics: Braided nylon builders line prevents sagging and helps to keep the masonry level. In addition, the red nylon rope has high visibility and can work normally under various conditions. It is the ideal choice for your construction or outdoor work. Wide range of applications: Brickies string line is widely used in architectural plans, masonry tools, handicrafts, gardening and marking. It can provide more protection for your outdoor activities and provide more help for your life