From the original Cashel. Use of a head bumper during trailering is important for protecting against trauma to the sensitive poll area. The Horse Helmet has adjustable, elastic straps that snap onto the halter, so that you do not have to remove the halter to put on or take off your head bumper. No more wrestling with an excited horse, wishing you had three hands to get the old-fashioned style head bumper off! With its larger ear holes, adjustable elastic straps and soft, hospital quality felt, the Horse Helmet is designed for comfort and safety. A foam insert at the poll increases your Horse Helmets impact protection. US Patent No. 5,713,188.