Mr Muscle Sink Opener Gel dissolves even the toughest blockages by penetrating the accumulated water in your clogged drains. Use once a week to clear blockages throughout your home and clogged drain pipes that cause slow water flow. To intervene directly in the blockage, pour 1/3 of the bottle to the place where the blockage is and clean it with plenty of water after waiting for 5 minutes. It opens clogged sinks, sink holes and pipes, and provides cleanliness and freshness in the drain pipes. It can be used safely in all types of pipes.