This pure white cord is 50-lb test and .012 inches in diameter, 50 yards long! There are other smaller parachute cords available, but they are less strong and very small diameters (.006 or less). This is not affected by UV radiation, and is waterproof.
Strong, longlasting, easy to work with, this is the cord of choice in many jewelry or craft projects where you want to ensure you have a strong cord.