| 1. Provide the most effective security for the police officers' operation process, easy to carry and set 2. Hollow plastic steel pipe thorns, venting tires without puncture, ensuring safety, concealed shape 3. Portable lightweight structure, only 0.516 kg, making throwing and retracting easier 4. There are tube thorns on each side to ensure that the device always expands correctly. 5. Can be applied to situations with or without police chasing 6. You can choose to use 9 feet (2.7 meters 3 segments) or 12 feet Products Demo Photo:
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