For creating attractive sidewalks, plazas, and other pavements, POM (porphyry-on-mesh) paving systems deliver quality cobble pavements without the need for a master mason. The product consists of ultra-hard paving stone that's cobbled and set on a light plastic mesh. Simply lay out the mesh like a carpet. The long-lasting stone is easy to maintain. The hardscape allows gradual tree root growth in the soil beneath it while the cobble helps slow water runoff for maximum runoff retention. Choose from a variety of formats, designs, sizes, and textured finishes.