Piece Water’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! Add Piece Water 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 simply rinse your pipe with tap water and it will be clean! In addition Piece Water acts as filter of particulate matter, which makes for cleaner & much smoother hits.