I’ve spent 17 years in corrections, and 12 years in the Canadian military, with 6 years at the World Court in the Hague. I’ve dealt with some of the most notorious war criminals/ terrorists in the world, and have used multiple handcuff systems. I recently tried out the ASP Sentry Handcuffs, and I must say they are the finest handcuffs I have ever used in my life. They are incredibly smooth, durable, and have an impressive double locking mechanism that ensures the person being restrained cannot escape. The quality is worth the price, and they are replacing my Peerless handcuffs. In fact, we are planning to replace the handcuffs in our tactical unit with the Sentry cuffs. I highly recommend them to anyone in corrections or law enforcement. I have nothing but good things to say—the ASP Sentry restraints are excellent.