These chain handcuffs are made from highly resistant stainless steel. It is medically sound and does not cause skin allergies (as compared to handcuffs with nickel or chrome surface cover).
The mechanical strength of the handcuffs complies with the high demands of the NIJ 0307.01 standard, the internationally recognized metal handcuffs performance test.
Thanks to a double lock the handcuffs are significantly more secure against attempts to unlock them. They are supplied with a pair of keys (standard universal key).
