Weedol Ultra Tough liquid concentrate weed killer is designed to kill brambles, nettles, thistles, docks, and other deep-rooted weeds. It has systemic action that permeates the roots preventing the growth of the weeds. Dilute the solution by adding a few drops of weed killer to the water. Apply using either a garden pressure sprayer or a watering can that comes fitted with a fine rose - no measuring, no mess. Ideal for clearing overgrown and untidy areas but not for use on lawns unless you intend to kill off all the grass. This pack contains six tubes of liquid concentrate weed killer.