| 摘要 |
There is described a security device for insertion into a container product for protection of the container product. The security device comprises a body portion moveable between a contracted configuration and an expanded configuration; and a locking mechanism operable to lock the body portion in the expanded configuration and operable to unlock the body portion from the expanded configuration; wherein, when the body portion is locked in the expanded configuration, the body portion has a length that cannot be reduced below a predefined length. |
