Cable Seals: These seals consist of a cable and a locking mechanism, typically made of metal. The cable is passed through the locking mechanism and then secured, usually with a key or a unique number. Cable seals are flexible and can be used in various applications.

Bolt Seals: Bolt seals are typically made of metal and are designed to prevent unauthorized access to containers. They have a pin that fits into a locking mechanism, and once closed, they are difficult to remove without leaving evidence of tampering. Bolt seals are often used for high-security applications.

Padlock Seals: Similar to traditional padlocks, these seals have a shackle that is inserted through a hasp or locking mechanism and then secured. They can be made of metal or plastic and often feature a unique serial number or barcode for tracking.

Barrier Seals: These seals are designed to provide high-security protection and are usually made of metal. They feature a heavy-duty locking mechanism that requires cutting tools to remove, making them highly tamper-evident.

High-Security Seals (HSS): These seals are designed to meet specific security requirements and standards, such as ISO 17712. They are typically made of metal or heavy-duty plastic and include advanced features to resist tampering, such as anti-spin mechanisms and unique identification markings.

RFID Seals: These seals incorporate radio frequency identification (RFID) technology, allowing them to be electronically tracked and monitored. RFID seals can provide real-time information about the container's location and status.

Plastic Seals: Made from high-strength plastic, these seals are used for general security purposes. They often feature a one-time locking mechanism that cannot be reopened without evidence of tampering.