Equipped now with boots, a sword, and (if he could just reach it, and slay a few stable-boys) a horse, Jack began considering how to get the damned chain off his neck. It was a conventional slave-collar: two iron semicircles hinged together on one side and with a sort of hasp on the other, consisting of two loops that would align with each other when the collar was closed. If a chain was then threaded through the loops, it would prevent the collar from opening. This made it possible for a single length of chain to secure as many collars, and hence slaves, as could be threaded onto it, without the need for expensive and unreliable padlocks. It kept the ironmongery budget to a minimum and worked so handily that no French Château or German Schloss was without a few, hanging on a wall-peg just in case some persons needed enslaving.