This set is comprised of two top of the line pairs of handcuffs and leg-cuffs. Both the handcuffs and leg-cuffs are made of Stainless steel. They are both also double locking, durable, and unforgiving. The chain on the leg cuffs is 16 inches long, and the links are welded, ensuring the ability to walk - but not much else. These pairs are built to last, and open only with the keys provided; there are two keys to prevent mishaps if one is lost.