) The Natural Hoof Shoe can be used in place of iron horse shoes-- will not change the gait. Simple to fit, carry one in the event a shoe is thrown. Gives great traction and reduces concussion. Great for trailering or riding on smooth or slippery surfaces. Great for use on stallions during service. Streams are no problem as this shoe has side vents. For the best fit measure diagonally from the corner of the heel to the corner of the toe. Round up your measurement. Machine washable. Sold as singles.