Tackle mould, algae and everyday dirt with the Spear & Jackson Spray and Leave. This ready to use spray is ideal for paths, patios, driveways, steps, headstone, garden ornaments and much more. This spray is designed to destroy spores produced by algae and works with the outdoor elements, including wind and rain, to gradually wash away the contamination over a number of months and can continue working for up to a year, depending on the extent of contamination. Read the instructions and packaging in full before use. Dimensions:Height: 285mmWidth: 170mmDepth: 125mmWeight: 5.13kgHazard statements: This product contains quaternary ammonium compounds, benzyl-C8-18-alkyldimethyl, chlorides.- H315 Causes skin irritation.- H318 Causes serious eye damage.- H400 Very toxic to aquatic life.- H411 Toxic to aquatic life with long lasting effects.