Which part connects the chain to each cuff half?

• A. Pawl
• B. Swivel
• C. Double lock
• D. Key way

Answer: (B)

A swivel is the rotating connector that lets the chain attach to each cuff half while allowing full movement without twisting. In a chain-and-cuff setup, the cuffs need to stay oriented to the limb as the wearer moves, and the chain must be able to pivot freely without binding. The swivel provides that pivot point, enabling smooth rotation between the chain and the cuff halves and reducing wear and tangling. The other parts have different roles: a pawl works with a toothed wheel to create ratcheting, not as a linking joint; a double lock is simply a securing mechanism; and a key way is a machined slot for transmitting torque between a shaft and hub, not for connecting a chain to cuff halves.