Dewitt Weed Barrier is a woven fabric that allows air and water to pass through but does not let weeds grow through, a must for most new landscapes where years of weed seed may exist in the soil. Just lay Dewitt weed barrier out over the prepared bed, cut holes for the plants, plant the plants, and then cover the weed barrier with your choice of mulch. Dewitt weed barrier is non toxic and does not break down over time so you will have a beautiful, low maintenance landscape to enjoy for years to come. Dewitt weed barrier is sold by the foot in 4 and 6 foot widths and can also be purchased prepackaged in 3 foot by 24, 50, and 100 foot lengths. You will also need anchor pins to hold down the weed barrier and we have them available individually or by the case.