These are authentic East German Police Wrist Cuffs. These nickel-plated, steel cuffs were used to keep troublemakers in line by a small twist of the iron handle while being held by police officers.  The rumor is these were favored by the East German Stasi...whether that is true, no one knows! 

Please note: as these are military surplus there may be some colour, quality and style variation to the image shown.