AL30-Chalk-Line-30m-100ft-Aluminium-Hultafors-652153-p-Chalk-line-with-a-cast-powder-coated-aluminium-body-with-a-sliding-filler-cover-The-cord-is-braided-cotton-polyester-the-cotton-absorbs-the-chalk-while-the-polyester-provides-the-strength-and-the-braid-ensures-that-the-cord-never-tangles-p-p-The-cord-is-1-mm-in-diameter-and-has-a-rupture-limit-of-16-Kg-p-p-30-m-100-ft-br-Capacity-80-g-of-chalk-p-Hultafors-652153-AL30-Chalk-Line-30m-100ft-Aluminium