100% low elongation polyester construction makes the 12 Inch Static Rope from ABC the top choice for mainline, haul systems and highline use. The strength that this rope provides also makes it a great choice specialized rescues and industrial safety applications.ABC's static ropes were specifically designed to be as tough as the professionals who depend on them. ABC engineered their ropes after carefully consulting numerous climbers, cavers, and rescue professionals across the nation. The result is what they believe to be the finest selection of static ropes available. From sheath to core,ABC static lines are entirely constructed out of high tensile polyester. This greatly reduces the potential for stretch or shrinkage while increasing strength, UV resistance, and durability. In addition, the high density sheath is extremely abrasion resistant, increasing the longevity of the rope. ABC then uses Dry Treatment technology, completing the construction process. Using polyester makes these ropes the most water resistant static lines available. Advanced Base Camp Static Response ropes meet or exceed UIAA and NFPA standards.