The OG Chillum is a discrete one hitter glass pipe. At only 4 inches in length, it's perfect for a quick toke when you're out and about. The OG Chillum is made of sturdy borosilicate glass. It's easy to clean and maintain, but also easy to replace if you find that you need to dispose of it, or in the event that it breaks. This pipe is designed to give you the a clean and easy smoking experience.