These boxed glass pipes work in the traditional manner of a Glass Steamroller pipe, using your hand to block the end before removing it to create the vacuum to inhale. However, unlike traditional Steamroller pipes the bowl is removable, tightly plugged so it is with a fitted rubber grommet.
There is an inner-chamber within the walls of the Steamroller pipe cylinder which is sealed off, with the space inside to be filled with ice-cold water or a liquid coolant via the access point on the head of the pipe. This aids in cooling the smoke and smoothing out the hit before it hits your lungs.
The Glass Steamroller Pipe comes neatly packaged in a storage/presentation box and thus makes an ideal gift for a friend or someone you absolutely hate but whom you happen to know has a particular gripe against receiving gifts packaged in nice storage/presentation boxes.