Easy Weedblock Landscape Gardening gives you years of use and even weed protection. This weed-blocking fabric uses patented Micro Funnels that transport air, water and nutrients directly to the ground. It also helps block the sun with a uv-treated polyethylene material that keeps the floor moist and cool for exceptional growth results. Choose from the available size options. Patented micro funnels allow air, water and nutrients to land. Blocks sunlight and weeds.