Rothco's Nylon Paracord is made by a certified U.S. Government Contractor. The paracord is 550 LB. tested, has a 7 Strand Core and is 100% Nylon with a diameter of 5/32 Inches. Para-cord was originally used in the suspension lines of parachutes and is sometimes called parachute cord. Paracord has tons of practical tactical and military uses and is also used for survival situations, camping and even to make bracelets and accessories.