PARACORD 550: Paracord III (550 lb) has a nylon core. Color: Black. Length - 50 feet (15.2 m). Available in 40 colors options. STRONG & DURABLE: Paracord III has 550 lb (249 kg) min strength; 32 strand sheath structure, 7 core yarns each made of 3 twisted nylon fibers.