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.