Made of Zinc Alloy with electrophoretic coating technology, more eco friendly and good adhesion ability. Lock design when there’s heavy item will not fall down by itself, much convenient. Zinc alloy D-ring hooks detachable. High density woven band. Firm and strong ring. Durable retractable Swivel Cord inside, steel wire rope can stretch to 23 5/8″” and flexible, rope can come out in many directions with 90 angle, not only one direction.Rope dia.1mm with rubber coating, feeling not rough, not hurt hand or cloth. Beside also have strong black Nylon wire to offer, price little lower than this one. Price is UV printing logo, no color limited.