7 Inner Cores Polyester & Spandex Cord Ropes, Solid Color, for Rope Bracelets Making, CoralSize: about 4~5mm in diameter, about 109.36 yards(100m)/bundle, 420~500g/bundle.Materials: Polyester & Spandex parachute ropes; Strong durable. Usage: Suitable for making bracelets and other handicrafts or decorations.