Manufacturer Part Number (MPN) : 4712R750CR Chain Cuff - Red. The Model 700CR features an improved internal lock mechanism for increased tamper resistance, smoother ratcheting action and greater durability. The 700CR incorporates spun rivet construction, push pin double lock capability and nickel finish. Two keys supplied. The Model 700CR is National Institute of Justice 0307.01 certified and comes with a lifetime warranty for manufacturer defect. Made in USA.