Description Proline’s Herringbone Old Cobble Stone offers a traditional 4″ x 8″ size Granite Cobble Stone in a classic Herringbone Pattern. This pattern will give a stunning Old World look to any patio, driveway or walkway. Proline stamps are preferred by contractors due to their precision, lighter weight and distinctive beauty. Decorative concrete offers lower costs, higher durability and inherent strength. Stamp size 24″ X 37″. Package savings reflected in price.