Artistic Pavers® Roadlock® RLPGLSG12 12" x 12" Granitelock® Driveway Paver Sterling Gray 2-3/8" Thickness. Roadlock® driveway pavers have a stunning look and are a refreshing change to the old concrete driveways. Its polished and smooth surface adds beauty to any project. Our high-quality driveway pavers will redefine your concept on how to keep your driveway looking its best. Built with the latest technology, they are durable and require very little maintenance. Choose from a classic pattern or create your own. Mix and match colors to express your style and preferences. The end result will be an elegant entrance, while also enhancing the value of your property.