Quality Nylon Material: the mason line string is made of strong nylon yarn, reliable and flexible, resistant to moisture, oil, corrosion and weather conditions, providing you long lasting serving time Nice Visibility: the fluorescent dyes applied in the construction string have nice visibility and are ideal for any application where high visibility is required, will not fade easily, and will attract people's attention quickly Flexible and Strong: the braided nylon string has higher tensile strength that can hold loads of up to 168 pounds and longer service life than other twines like cotton, good abrasion resistance and does not unravel, can handle high stress application with no sag or deformation Package Content: the package comes with 4 rolls of mason lines, each measures about 500 feet in length, 2000 feet in total, plenty of length and bright colors to meet your needs, practical tools for you Application: the braided nylon twine can be applied in most indoor and outdoor activities, such as fishing, boating, masonry, crafting, gardening, also suitable for marking, hanging, DIY projects and gift wrapping Features: Construction twine has a nice flexibility, not easy to knot, and the nylon fiber is twisted to form a tight and strong rope, with high load capacity and less deformation, easy to use. The twisted nylon twine can be applied in most indoor and outdoor activities, which is a practical household essential. Specifications: Material: nylon Color: as shown Size: 500 feet each roll Package includes: 4 Rolls nylon twine Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Winding risk, please keep away from children.