Concrete Saver Putty Patch features a malleable design that can be shaped, molded & shaved to easily apply to horizontal, vertical & overhead repairs. High-strength formula is stronger than concrete to ensure your repairs will withstand daily abuse whether it's indoors or outdoors. Proprietary blend of Portland cements, aggregates & additives achieves an initial set in 10 to 15 minutes & a final set in 20 to 25 minutes for quick repairs. Easy-to-use design repairs concrete cracks & holes up to 7" deep in just a single application. Putty Patch is perfect for repairing steps, sidewalks, driveways, walls & more.