300 Foot Spools of 550 Pound Tensile Strength 7 Strand Paracord Diameter: 5/32 (4mm) Removable 7 strand inner nylon core Durable, strong, resistant to UV, will not rot or mildew, and quickly dries Paracord is great for crafting, camping, fishing, hunting, emergency, survival situations, & much more Multi-purpose cord that is also known as parachute cord, 550 cord, para rope, utility cord, & utility line