The IRWIN Strait-Line Speedline Chalk Reel is designed for fast, accurate marking on construction, carpentry, and masonry projects. Featuring a 100 ft (30 m) line, this durable chalk reel includes an Easy Hook & Go® system for quick attachment and a smooth, 3× faster rewind mechanism to improve productivity on the job. Its compact, rugged housing is built for tough job-site use and clean chalk release for clear, straight layout lines.