W. Rose RO686 Super Tough Professional Bonded Braided Nylon Mason's Line, 685-Feet, Orange/Black 35% stronger than regular mason's line - 216 lb. test Bonded for better knot holding High Visibility Color Made in the USA mason line;brick line;masonry line;mason's string 685 Feet of Bonded Braided Nylon Line 35% stronger than regular mason's line - 216 lb. test Bonded for better knot holding High Visibility Color Made in the USA