LOOKS MEDIEVAL I KNOW BUT OUR AMERICAN COUSINS SWEAR THESE ARE MORE DOG FRIENDLY THAN THE TRADITIONAL CHOKE.WORKS BY APPLYING PRESSURE AT VARIOUS POINTS AROUND THE NECK LIKE FINGERS AS OPPOSED TO THE REGULAR CHOKE CHAIN . FITS UP TO MEDIUM LAB SIZE DOGS.
As a footnote please be aware these items like choke collars are not for amateur / quick fix usage and should only be used by or under instruction from experienced handlers ....Damage can occur if this item like any choke/ pressure collar is misused or abused by a handler.