Handcuffs by Chicago Handcuff Company are available in multiple variations. The model X55 stainless steel handcuff is NIJ approved and is one our best sellers. The model 1100 handcuff is identical in design but is constructed of nickel-plated steel. Our model 1000 handcuff is the best value on the market & our new color plated handcuffs are extremely popular. The new X22 high security handcuff features a high security key & anti shim bars, making these the most secure handcuffs you can find. Chicago handcuffs have regularly beat out the competition in strength, longevity & value. The Chicago model 1200 is the only stainless-steel hinged handcuff on the market.