Our CMC ProSeries RIT Line is 100% aramid fiber for a high level of survivability when used during structural search & rescue. The unique construction of this product makes it easy to stuff into an Escape Line Bag or turnout coat pocket, yet is firm enough to be felt against the floor when following it in low visibilty conditions, even while wearing gloves. Diameter: 5.6mm Weight: 1.57 lbs./100ft MBS: 2,285 lbf. (10.1kN) Temperature rating: 900°F (482°C). This RIT line (#292005-02), is the previous product version. The current version of this item contains a highly reflective tape, Reflective RIT Line (#292005).