Carbon Steel Classic Style Metal Police Dual Key Handcuffs

A: Almost impossible. Without special training, forcibly breaking free will only result in severe abrasions or even fractures of the wrist. Even for someone with excellent hand flexibility who can pull their hand out of the handcuffs (a process called "unshackle"), it will come at the cost of serious injury, and it may only be effective against oversized or improperly used handcuffs.

A: It has two main functions:
• Preventing accidental tightening: When the double lock is engaged, the ratchet mechanism of the handcuffs is locked, preventing further tightening even under external impact or pressure, ensuring safety.
• Preventing technical unlocking: Adding an extra locking mechanism greatly increases the difficulty of unlocking with simple tools such as wire.