Route 44 Technology Developed Exclusively By Singing Rock. 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 And Big Wall.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }