Koch Industries 5341824 Nylon Braided Gold Mason Line #18 By 1000 FeetWorking load limit 13lbs.Resistant to oils, gas and most chemicals Rot and mildew resistant Wears well on pulleysUses include chalk and mason line High Quality Contractors, farm and home applicationsWarning: Do not use for overhead lifting or in applications which could result in physical injury. Never exceed the working load of this product.aeronca x 62 weiser