The Reflective Accessory Cord is strong, lightweight and super handy. Its plethora of uses include things like tent or tarp guy lines, a laundry line, hang piece for your drink bottle lid or pocket knife, and more. Made from hydrophobic polyester, the cord won&';t soak up water and stretch. It is super bright and reflective and the tight weave resists tangling. Available in a 3mm or 1.8mm diameter.