The Evolution of European Cobble. Distinctive European Style at an Affordable Price. A completely new and unique patented system creating a look of handcrafted cobblestone. Cobble Systems consists of individually cast cobblestones connected by a nylon grid, creating a "carpet of stone" that installs in seconds. This amazingly simple system is comprised of patterned sheets - fans, circles, and straights - that link together, providing limitless design possibilities.