For many firefighters, the solution to navigation in an unknown structure with poor visibility is a small cord attached at the entrance and deployed as the firefighter moves through the building. Whether called a RIT line, guideline, or search line, the cord provides a means of retracing your steps to the entry point or for a Rapid Intervention Team to quickly locate you. With a carabiner on each end, your partner’s line can be attached to yours to extend the distance. The 50 ft. length works well for residences and small structures. The 150 ft. length is a good choice for larger commercial buildings. Includes CMC ProSeries RIT Line and two bright orange ProTech Manual Lock Carabiners with keeper pin.