The CTS Thompson Model 1010 is a nickel plated chain style handcuff. NIJ approved. Model 1010 handcuffs feature "Trueswing Technology" which assures that the shackle will always swing straight into the body plates and lock itself to the multiple drop bars. CTS Thompson Model 1010 Handcuffs features special back-loading for fast application and raised rivets for added strength. Weigh 9.5 ounces. Made in USA. Limited lifetime warranty. 2 handcuff keys included.