Resinate Green cleaning solution works great on a variety of smoking devices. You can use it on glass, pyrex, metal or ceramic. Resinate is biodegradable and more effective at cleaning then isopropyl alcohol. Each bottle is 12oz and has a green apple smell. To use please remove paper cover and plastic layer then reseal lid and shake liquid then pour into smoking apparatus. Thirty seconds to a minute of shaking is enough to make even the toughest of pieces shine like new.