Features :"• Measures 4 ft width by 300 ft length bulk rolls • Unique design >> 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 spunbond method; which sandwiches melt-blown material between two layers of spun 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 unravelling 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. Measures 4 ft width by 300 ft length bulk rolls."