These nickel plated Cyclone handcuffs are firstly backloaded making wrist applicaion quick and efficient.  They are also rigid which allows the law enforcement officer a very high degree over his/her prisoner.  The most important feature of these handcuffs is the ease with which you can use the double locking feature, just slide the button, a very important feature when you have a struggling violent prisoner.  Probably the best pair of handcuffs in the World and very reasonably priced considering the amount of development which has gone into these high quality handcuffs.