LINE NYLON GRADE BRAIDED 250'YELLOW. This US manufactured product is a line made of 100% high tenacity nylon filament. It has a special braiding process that helps with elasticity and eliminates sagging of the product. And it makes it strong and resistant, among other things, to rot, mildew and abrasion. The product can be used as chalk, for repairing fishing nets and many other uses. Also, it doesn't come apart as easily as an ordinary nylon thread.