Our handcuffs are fabricated from the finest quality of nickel-plated carbon steel to provide a strong and corrosion-resistant surface. The satin nickel finishes are not shiny and make handcuffs appear cloudy. This is done to ensure the handcuffs are both non-reflective and kept low-profile while also making them easy to grip. They are also manufactured with heat-treated internal lock works featuring smooth ratchets for swift cuffing and double locks to prevent tampering. Keep perpetrators from picking or shimming out of them and ensure they don’t accidentally tighten. Includes handcuff keys.