Effectively penetrates and cleans up to clogged pipes from basins, bathtubs, kitchen sinks, shower and other areas where waste water flows. = Dredge for hair, domestic wastes, etc. = Block-up grabge and easy to work. = To ensure free-flowing drainpipes, at least use it one times for every six month. And for those who live and stay on flat house, at least use it one times for every two month. = Weight: 250g Direction: = Use 40g to 240g (kitchen and bath sink) and pour it into pipelines and wait for 7 minutes before rinse with warm water. = Use 300g to 600g (toilet bowl) and wait for 30 minutes before flush. = If still clogged aluminium surfaces. = Avoid contact with skin and eyes. Wear gloves to prevent skin contact. = If in contact with eyes or skin, wash throughly with running water.