Professional-grade braided nylon mason twine designed for layout, plumb bob use, and masonry work on construction and concrete projects. Manufactured by KESON with superior braided construction that doesn't come apart even when reused, making it perfect for large jobs and everyday use. Unlike twisted lines that unravel when nicked, this braided mason line withstands accidental trowel contact without unwinding. The braided design offers an additional benefit—it doesn't spin as much as twisted line, bringing plumb bobs to rest sooner for faster, more efficient layout work.