Roundup Concentrate Extended Control Weed & Grass Killer Plus Weed Preventer IIBrand: Roundup Color: Brown Features: Dual action formula kills existing weeds and prevents new ones from growing for up to 4 months Kills weeds to the root. Guaranteed!* *Consumer Guarantee: If for any reason you are not satisfied after using this product, simply send us original proof of purchase and we will refund the purchase price. Use on driveways, sidewalks, and patios; along fences, foundations, curbs, retaining walls and edge of lawns, as