Yates zero rapid 1-hr weedkiller - power trigger ideal for rockeries, garden beds, paths, driveways, along fence lines and lawn edges or before planting new lawns and gardens. Visible symptoms of spraying will typically occur within 1 hours on most weeds.Features 3l power trigger with ready to use zero weedkiller visible results within 1 hour on most weeds plant back period is immediate one the spray has dried single touch, continuous spray – spray and stream functions battery operated (top load) – batteries included wide coverage for large scale applications 3l refill pack also available ingredientscontains 16g/litre glyphosate as the ammonium salt in the form of a ready to use liquid.How to useuse zero weedkiller on weeds and grasses when they are actively growing with enough healthy leaves to take up the spray.Spray foliage until leaves are just wet. Do not spray to run-off. Do not disturb sprayed weeds for 7 days after treatment. Do not spray if rain is likely within 30 minutes. Best applied when temperatures are over 10°c. Visible results may take longer than 1 hr on certain tough weeds or weeds in deep shade. Repeat spray after 2 weeks if necessary. Reuse yates zero power trigger unit with yates zero 3l refill. How to apply - power trigger operation - peel off sticker and lift lid on cap. Remove power trigger from holster and straighten hose. Insert attachment at end of hose into hole in cap to lock hose permanently in place. Adjust the spray pattern from off, to spray or stream setting by turning the nozzle of the trigger. Open battery door and remove battery tab, close door. Squeeze trigger to prime the unit and commence spraying. Angle trigger down towards weeds and commence spraying. After spraying, turn trigger to off position, wind hose around trigger and replace in holster. To replace batteries, press the small ‘push to open’ with a pen or pointed object and insert batteries with polarity as shown by + and – symbols. To prolong the batteries, only hold trigger down, intermittently for 30 seconds at a time.