Dewitt 12YR-350 3" x 50" Weed Barrier Pro Landscape Fabric, BlackExcellent for Long-Term Landscapes. DeWitt Weed Barrier 12 Year is an easy-to-use, environmentally safe fabric that controls weeds before they start. Its unique design provides several advantages over conventional weed barrier products. It is fabricated using a spun-bond method, which sandwiches melt-blown material, forming a powerful 3-ply layer of weed protection. Plus, the fabric"s higher carbon black content provides superior light-blocking capabilities to protect against the toughest perennial weeds. The design also prevents unraveling and makes the material easier to cut. In addition, DeWitt Weed Barrier 12 Year is hydrophilic treated, providing improved water and nutrient flow through the fabric.Dewitt 12YR-350 3" x 50" Weed Barrier Pro Landscape Fabric, Black Features:; Designed specifically for professional landscapers, contractors and garden centers; Specifically made as a landscape and garden fabric; Weed Barrier Pro is UV and hydrophilic treated for water permeability; Saves big on watering by conserving the soil"s moisture; Provides complete weed control; Hydrophilic treated, letting air, water and nutrients through; Fabric is black on the back side for ultimate in light blockage; Easy to cut and install; Uses multiple-layer technology; Environmentally friendly, controls weeds without chemicals