American Cop: ASP’s Sentry Handcuffs
"The action is smoother than any other pair of handcuffs or leg chains I have used. They live up to ASP’s statements about them – they fit a wide range of wrists, go on smoothly, and come off quickly. Double locking and then unlocking them is easy to do and verify. If you need handcuffs for duty use, I can recommend the Ultra, Ultra Plus, and Sentry lines from ASP."