Kanpur : Kanpur has developed a new type of horseshoe that will have a longer life and save the horses from the excruciating pain they have to undergo while changing them. The horseshoe that the animal wears gets roughed out within a week, but the owners continue with it for months which adds to the animal's discomfort. The new horseshoe is supposed to last, at least, for a month. Rita Singh, convener, Rural Technology Action Group, IIT, said an iron rod -- that is used in house building -- is used to make the horseshoe which has less carbon and thus comes off easily. "In fact, this horseshoe will automatically fall off after a specified period of time," she said. This is why horses will not need to go through the painful process of getting an old horseshoe removed and getting a new one.