These hinged handcuffs are constructed with good quality stainless steel material. This product generally comes with double lock mechanism as well as two keys. This product is approved by NIJ (National Institute of Justice). This products meets the standard 0307.01 of NIJ. These handcuffs have good lifespan. One more important thing about these handcuffs is that the keys are not universal. That is, the keys of these hinged handcuffs are specific to the item and can not be used to open other handcuffs. Buying this product is worth spending as the quality of this product is extremely high.
Material: Stainless Steel