The 10 in. x. 7 in. x 4 in. Granite Cobblestone Edger blocks (50 pieces per pallet) are hand cut, gray color and have a tumbled appearance. Authentically natural granite. Being hand cut, these Cobblestone sizes vary slightly but are fairly consistent. Use these blocks to create a Cobblestone Edger for your gardens or lay them down to get an authentic old world Cobblestone walkway or driveway. These blocks are rated for vehicular traffic. Granite is one of the oldest building materials known to man. Resistant to scratching and durable in driveways and foot traffic areas makes it the better choice.