Cobblestone 8 in. x 4 in. x 4 in. Granite Gray Edger Kit (Pallet of 100 pieces)The 8 in. x 4 in. x 4 in. Granite Cobblestone Edger blocks 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