Patio magic 25 litre is ideal for use on all outdoor hard surfaces with no scrubbing or power washing required its easy to use and youll see visible results in just 2 4 dayswarningalways read label keep children and pets away until treated area is dry contains75 ww benzalkonium chlorideharmful to aquatic organismswarningirritant dangerous forthe environment hse n 8579 pcs n 95346