Milwaukee 150' Extra Bold Chalk Line is designed to deliver high-strength performance with its braided construction, ensuring durability and reliability on the job. This line creates extra-bold, clear chalk lines that maximum visibility, making it easier to achieve precise measurements and markings. I for use with Milwaukee chalk reels, it also includes a sturdy metal end ring for added convenience and durability. This chalk line is for professionals who need a dependable tool for accurate layout work. Model Number: 48-22-3905