A chalk line is a very simple tool that performs an essential task: it provides a perfectly straight line that is temporary to almost permanent. The material cost to do this essential task this is very reasonable. In fact, once you own the reel, its almost free. At Keson, weve taken the time to learn a lot about chalk line reels from end-users. As the only US manufacturer of chalk and chalk line reels, we are in a unique position to interact and respond with the people who build in and build up our communities. These builders have told us a lot about whats important in a chalk line reel, and what works and what doesnt. We continuously add to and improve our chalk and chalk line reels based on the feedback from end-users. Somewhere between a felt-tip marker and a chisel tip marker, lies line left by our bold string. This string is more often used in higher traffi c areas and outdoors. Unique shape great for corner work Heavy-duty steel crank for long life Holds 3-Ounces of chalk 100 Foot bold cord Self-sealing grommet for spill-free refills