This relatively new model is built to the normal high standards associated with Alcyon and meets NIJ standards.  Notice the 'Smith and Wesson' type slot for double locking which is a new feature of Alcyon handcuffs.  Two keys with the normal pin to enable  double locking are provided.

THIS MODEL IS NOW DISCONTINUED AS ALCYON HAD A PROBLEM WITH PRODUCTION SO THEY ARE NEVER TO BE REPEATED.  FOR COLLECTERS ONLY AS WE DO NOT GUARANTEE THE RELIABILITY OF THE DOUBLE LOCKING