Material:Our steel cable seals are made of premium steel wire and very strong ABS plastic lock, they are durable, strong, not easy to break.Without numbers Size:Total length 300mm,Lock size: 26mm*12.5mm. Easy Application: One piece structure,with self-locking and pull tight locking mechanism. It is immediately secured when you pull tight the steel wire seals. Tamper Proof: The security cable tags can't be opened once secured, unless cut the wire away, provide tamper evidence while loading or transit, adding security to prevent unauthorized entry. Widely Used: Suitable for containers, trailers, wagons, oil tank truck, railway vehicles, cargo, trucks, vans, doors, airlines, storage control doors, railroad cars, bulk tankers ideal for logistics and shipping fields., Manufacturer: Tinshow