Just a sprinkle of Preen stops weeds before they start, and now, with Preen"s new battery-powered spreader cap, weed prevention is faster, more precise and easier than ever. The Preen Battery-Powered Spreader provides better coverage with less fatigue, and customers love it because it"s easy to use. Just flip open the cap, turn it on, tilt the container down and move it evenly around the target area. The AAA batteries (included) do the rest, delivering just the right amount of Preen to large or small areas - allowing users to easily spread the product underneath and between shrubs and plants without overspray. Preen Weed Preventer stops weeds from germinating in flower and vegetable gardens, in ground covers and around trees and shrubs. Although Preen will not kill existing weeds, it can be used as a grass weed killing alternative. It will prevent new weeds from sprouting – eliminating the need for difficult and time-consuming hand-weeding. Without weeds, your valuable plants can grow larger and stronger. Your beds will stay neat and weed-free all season long! Covers 1000-square feet.