Will outwear iron soles by three to one. Provides traction on snow and ice. Protects sole and alleviates frog hoof cracks. A must for foundered horses. It is important to match the width of the hoof to the Easyboot size. The front hooves of most horses tend to be wider than the hind hooves. The best fit may require a smaller size for the hind. To ensure a proper fit, measure the hoof across the widest point and compare with the size chart. Black only.