i know this guy that has a 9 foot glass on glass but whats pretty sick is at five feet high you can pull off the top four foot portion to have only a 5 foot binger. its pretty crazy but sick as fuck. and another one of my friends had a 4 footer that had a 2 foot downstem so you could light it yourself, it hit like a 2 footer as far as intensity w/ the burn but it got you high as the sky from one hit!