Full Steam Ahead!!! The Ash Catcher Steamroller Glass Pipe is so named because of the indented mouthpiece that serves as the dry filter ash catcher and the straight shape. By indenting the mouthpiece, anything heavier than air (ash, particulate or any solids) is pulled down by the natural effect of gravity, misses the mouthpiece hole and is deflected further downward to collect at the base of the indent, instead of being pulled into your mouth. Chameleon Glass is one of the most well known and respected American Glass companies. They are most popular for their hand pipes, bubblers, and accessories dating back as far as 1991. Located in Arizona, all pieces are 100% American made. Chameleon Glass is always creating new and innovative designs to bring fresh new products to the market.