Ike's 114617 4' x 300' Weed Armor Pro 30 - Ike's Weed Armor Pro 30 Commercial-Grade Weed Prevention Fabric with 12″ Grid is designed to allow for easy alignment of potted or installed plants. It allows for air, water, and nutrients to pass through while blocking sunlight, nipping weeds in the bud. For exposed or unexposed use in nursery applications, this woven and rugged 3 oz polypropylene fabric protects your plants and ensures they get exactly what is needed to flourish.