A horse halter is a type of bridle or headgear that is used to control and lead a horse. It goes around the horse's head and attaches to a lead rope, allowing the person holding it to guide and control the horse. Full definition
I heard the horse halt outside and the small sounds of a man dismounting. (bookbrowse.com)
Like a horse halter, this «collar» actually fits around the head. (caninejournal.com)
Some go around the neck, others go around the body and one type actually goes on the dog's face and muzzle just as a horse halter does. (notinthedoghouse.com)