Pro-5 Weed Barrier is the industry's best 5 oz woven, needle-punched, polypropylene fabric designed for professional and commercial use. Pro-5 Weed Barrier has been approved by leading landscape architects and most government agencies. Pro-5 Weed Barrier conserves soil moistures, increases growth and prevents unwanted weeds from germinating. Colored stripes located 12 inches apart make for easy plant alignment.