Do it Fluorescent Pink Twisted Nylon Mason Line, 525 ft. is crafted from nylon with a twisted construction that ensures superior strength and durability. This mason line is rot-proof and resistant to oil, grease, gasoline, and mildew, making it i for tough job site conditions. It features a special coating that resists abrasion, providing long-lasting performance. The line is sized at No. 18 thread with a breaking strength of 170 pounds, and its bright fluorescent pink color enhances visibility. Packaged in a convenient sleeve, this mason line is for a variety of construction and masonry tasks. Model Number: 360643