Pull tight Galvanized steel cable seals offer a tamper evident solution for sealing truck trailers, containers, and various other cargo holds. Made of heavy-duty Galvanized steel these cable seals have a tension strength of up to 1000 lbs. and come pre-printed with 6 digit sequential numbers. To use simply thread the end of the 5/64 inch) or (1.8 mm) Galvanized steel wire through the heavy-duty aluminum alloy lock and pull tight. These security seals can only be removed by wire cutters. This is a ISO 17712:2013 Compliant Seal. BFSEALS - FAST and FREE DELIVERY