Headpiece and browband made of a piece to take pressure off the poll (1st and 2nd cervical vertebrae) Unique throatlatch system linked to the noseband to ensure that the headpiece sits behind the 2nd cervical vertebra (this throatlatch must fit snugly against the cheeks) 1/2” (13 mm) flash strap Not suitable for horses that show no signs of 1st and 2nd cervical vertebral issues. Consult your veterinary surgeon.