Roundup Tough Ready to Use Weedkiller gives you the confidence that even tough weeds will be killed fast, right down to the root, so they don’t come back. Ideal for controlling annual and deep-rooted perennial weeds, this ready to use fast systemic weed killer controls a wide spectrum of annual and deep-rooted perennial weeds including Grasses, Couch Grass, Docks, Thistles, Nettles, Dandelions, Bindweed and many more. Contains Glyphosate. This 1.2 ltr bottle comes with a non-drip trigger.