Keratex Nail Hole Damage Repair is a great product to add to your hoof care kit. Using the special applicator, you simply spray the liquid into new, old or strained holes to flush them out with this instant cleaning and repair solution. Once the hoof cracks are filled, the liquid will go into action, flushing out and repairing the cracks, while also cleaning and curing the inside and where the crack starts, ensuring that existing damage, gaps or cracks do not form. This product is very effective on hooves that suffer from dual stress issues around new and old cracks.