Size: The aluminum repair patch measures about 4 x 4 inches. Properly sized for holes up to 4 inches in diameter, bring you great convenience when repairing damaged walls, roofs, cracked holes and other drywall. Works Well for Repairing Holes: The mesh coating of the aluminum mesh repair patch provides a smooth surface, the repair surface is flat and has no cracks. It is suitable for repairing the most damaged surface