The Keson Bold String Chalk Line Reel is a heavy-duty tool designed for use in high traffic areas and outdoor settings. The 45-meter (150 feet) long string is equipped with a pull ring for easy handling. The bold string leaves lines that are slightly larger than a felt-tip marker, making it easy to see in various lighting conditions. The housing is made of durable ABS material, and the reel can hold almost a pound of chalk, which means fewer refills are necessary. The BigMouth® chalk port allows for easy refilling and a secure seal. The one-piece steel crank handle ensures a long life for the reel. With a 1:1 gear ratio, it can pull 100 feet in about 60 seconds. The snapped line width ranges from 1.26 to 2mm, and the braided line uses less chalk and puts down less chalk, resulting in less ghosting. The line is made of natural cotton, which picks up and puts down more chalk, but it can mildew and weaken in damp environments