Singing Rock R44 10.5mm 150' Red Nfpa R0430RR04. This unique sheath-braiding technology proves there is a better way to make a rope. Route 44 is the only rope in the world to use this patented technique making the rope more perfectly round and giving the sheath a perfect blend of thickness durability and handling characteristics. Recommended use: rescue operations work positioning military and police use caving fixed rope for expeditions big wall. Specifications for Singing Rock Rope - R44 10.5mm 150' Red Nfpa: Manufacturer: Singing Rock Color: Red Package Contents: Singing Rock R44 10.5mm 150' Red Nfpa The Singing Rock R44 Nfpa Rope is a quality addition to the Singing Rock lineup. For more great deals on Pulleys & Ascenders by Singing Rock please browse our Singing Rock Climb page.