Durable Nylon String: This is stronger than polypropylene twine, Handles high-stress up to 160 pounds, is professional-grade, heavy-duty, mid-stretch, long-lasting, application with no sag or distortion, moisture, oil, acid and weather resistant.
Braided and Uncoated: Unlike twisted twine, the twisted nylon twine will unravel after being cut, the braided twine will not fray or unravel when cut and tying knots.
Construction Line String: It is a great tool for professional brick maker, give you straight line guides for accuracy when laying bricks or blocks, you can also use it as jet line string, carpentry, etc.