Construction : Woven from high tenacity polyester yarns. Features: 1)Very high system strength when used with wire buckles. 2)Safe for users and receivers 3)Lightweight and portable system 4)Will not rust or rot at all 5)Weather resistant 6)Shock absorbent 7)No damage to products as it is soft and pliable 8)Re-tensionable at any time 9)Strong as steel 10)High retained tension. Standard width : 13mm, 16mm, 19mm, 25mm, 32mm System strength : 683kgf-2400kgf. 2 coils per box.