Material:Steel Lock + ABS Coating + Galvanized Steel Wire. Size: Length 40 CM/15.75 Inch Certificate: International standard ISO 17712 : 2013. Function: disposable cargo tags with unique series number, adding security to prevent un-authorized entry. Anti-Theft, anti-tamper, tamper evident products. Application: mostly used on shipping and logistics area, such as containers, trailers, bowsers, wagons, railroad cars, cargo, truck, vans doors, vehicle doors and so on. Printing: Printed with sequential progressive series number for unique ID recognition.