A leather one ear headstall is a piece of horse tack that consists of a leather strap that goes around the horse's head and attaches to the bit on one side. It typically has a single earpiece that rests on the horse's head to help keep the bridle in place. Leather headstalls are commonly used in Western riding disciplines and are known for their durability and traditional look. These headstalls can be plain or decorated with tooling, silver conchos, or other embellishments for added style.