Classicn 9-core 100% High Tenacity Polyester, Standard 550 Cord/Parachute Cord Used by The US Military. Multi Purpose Diamond Braid Polypropylene Rope Material: high tenacity polyester + high-strength polypropylene Length: 100 ft (30.5 m) Specifications: 9-core *4 mm 550 standard, Ultimate tension at 350 kg Widely used in: outdoor bundle tent rope, parachute rope bracelet braided rope, outdoor hiking shoe laces, high-grade packaging rope, clothesline, flashlight line and car seat braided rope Special Note: we use the most advanced equipment and the high cost of high-strength polyester and polypropylene materialSpecial Note: we use the most advanced equipment and the high cost of high-strength polyester and polypropylene material