Roll contains 50 yards (approximately 45 metres) of cord and is 0.006" (around 0.15mm) thick. Available in crystal (white-ish) only, rated to six pounds. Fireline is a pre-waxed, braided cord consisting of gel-spun polyethylene which is known as the strongest fiber, per diameter, ever created. It has an unbelievably high tensile strength and has been recommended in numerous how-to articles on beadworking. It does not stretch or tangle. Sold per roll.