Check the listing for details. Sandbaggy #18 x 1088 ft Twisted Nylon Mason Line - Construction String. Color: White, Condition: New. Listed at 23.62 USD. Perfect For A Variety Of Construction Applications! Ensure precision and durability on every job with our #18 x 1088 ft Twisted Nylon Mason Line. Made from 100% nylon, this construction string is designed for tough construction environments, it’s abrasion, weather, rot, and mildew-resistant, making it perfect for outdoor use. With a 170 lb working load strength, it offers reliable support for layout, leveling, and other essential tasks. Specs Material: 100% Nylon Rope Configuration: Twisted Rope Diameter: 1/16" Length: 1088 ft Break Strength: 170 lbs Roll Dimensions (W x L): 6" x 7" Weight: 1.1 lbs Color: White Features Abrasion, Weather, Rot & Mildew Resistant: Built to withstand harsh construction conditions. 170 lbs Working Load Strength: Strong enough for a variety of masonry and layout tasks. Size: #18 thickness with 1088 ft per roll for long-lasting use on the job. 100% Nylon: High-quality, durable material ensures flexibility and strength. Versatile: Ideal for leveling, layout, and alignment in various construction applications.