This Sally Hansen treatment diamond-strength instant nail hardener can help stop nails from breaking. It comes in a compact bottle that has a precision tip applicator. This Sally Hansen instant nail hardener has a clear finish to leave nails looking natural. In just a single layer, it provides nails with reliable protection that's made to last. This treatment can make a helpful addition to a nail care routine with its quick-drying design. This helpful nail treatment is ideal for use at home or the salon, offering flexibility in its use.