Introducing ResRemover: The world's first "just add water" pipe cleaner! This unique cleaner works with almost all pipe materials, making it perfect for all of your small-item cleaning purposes. Simply add hot water to the fill line, put in your dirty items in the bag to soak overnight, and thoroughly rinse with hot water. Voila! Sparkling clean smoking tools. This cleaner is reusable, so simply seal and store in a safe place for your next use.