Tajima CR401S Chalk-Rite chalk box - Dura 1 mm chalk snap line with integrated handle release. This high quality chalk box is another of Tajima fine Japanese products suited for contractors and homeowners who want quality tools. Premium elastomer-wrapped end hook and built-in end hook Stay. Extra heavy-duty chalk box with bold premium braided caulkline. Rugged aluminum case with non-slip grip. EXTRABOLD SNAP LINE 1.0 mm braided nylon line produces clean, clear, accurate snaps for the precise layout results. Designed to work best with Tajima Micro Chalk and Snap Line Dye FAST LINE RETRIEVAL This Tajima chalk lines 5gear, fast wind system allows for quick line retrieval of your marking string, saving you time on any busy construction jobsite DIECAST ALUMINUM CASE High capacity, premium aluminum body with elastomer grip for added durability QUICK SPOOL LINE Integrated handle release allows chalk line to freespool when pressed and automatically reengages when winding this chalk line tool EASY FILL NECK Large chalk refill neck makes loading Tajima chalk line powder and Snap Line Dye quick, easy, and mess free, setting it above other construction tools