This product is 350 ft. of strong white nylon line that is perfect for masonry projects. The safe work load of this line is 20% of breaking strength. Do not stretch under any greater tension. Always replace worn or cut lines and wear goggles when working with mason line and line holders. This item is durable. Bon Tool's products have been trusted by professionals for over 60-years. Bon is committed to the development and improvement of tools for professional contractors and do-it-yourselfers alike. We put our trusted name to every product we sell.
