Piece Water Solution's® unique proprietary blend of safe-all- natural mineral, vegetable, and fruit extracts work to prevent resin from forming on your bong, water pipe, or bubbler. It’s 100% All Natural and Absolutely Non-Toxic! AddPiece Water Solution® to a clean bong and your piece will remain clean and clear from resin build up. When you are ready to change your Piece Water Solution® simply rinse your pipe with tap water and it will be clean! In addition Piece Water Solution® acts as filter of particulate matter, which makes for cleaner & much smoother hits.