RooR is one of the most famous Glass Pipe Company's in the World. ... ROOR stands for constant innovation like the Glass on Glass for the US, the Ice notches they created to cool the smoke, and the Diffuser down tube for the smoothest experience ROOR started out in 1995, founded by Martin Birzle, and for more than 20 years ROOR has been providing high quality glass to smoking connoisseurs all over the world.