RFID Lead seals tag are disposable products. Once locked correctly, they cannot be opened unless violently destroyed (i.e. cut open). The damaged seal cannot be reused. Usage: The metal lock body adopts a steel ball inclined structure. The seal can be directly punched and pulled. Each seal has a unique UID or TID number, which is safe, secure and easy to lock. Application: Logistics, warehousing, gas cylinders, network wiring, electricity, electric meters, petrochemicals, shipping, gardening and other industries