Roundup® 5101910 Ready-To-Use Extended Control Weed & Grass Killer, 1 GallonDual action formula. Kills existing weeds & grasses to the root. Prevents new weeds from growing for up to 4 months by creating an invisible barrier. Extended reach, no bending over. Continuous spray. No more hand fatigue. Precision control for maximum accuracy. Pre mixed, pre measured, easy to use. 1 gallon Ready to use, extended control weed & grass killer wand Dual action formula Prevents new weeds from growing for up to 4 months by creating an