40m² covering (2 x 20m) weed fabric roll 100gsm UV resistant material 3 years warranty 100% recycled polypropylene Use 1 bag of 100 x PROSTOP pegs per roll Heavy Duty Weed Fabric - 40m².The robust 100gsm woven polypropylene fabric can handle both pedestrian and vehicular traffic making it the perfect solution under driveways, gravel paths, decking and many more outdoor areas prone to weeds.