This headstall features a large, easily used, snap to release the crown piece (also called the head piece) of the headstall. These are great for horses who dislike the headstall being pulled over their ears. These head stalls are very popular for use with mules. This head stall is highly adjustable, fitting horses and mules measuring: Lip-to-Lip: 41"-51" Throat Latch: 24-28.5" Brow Band: 16"