These classic beaker style water pipes measure 12 inches (30.48cm) tall with thick sides and feature a beautifully etched Mayan calendar design with an electroplate iridescent design on the base. These quality borosilicate glass pipes include a 4.5 inch slitted downstem diffuser and a 14mm male herb slide. The bottom of the bong features a unique felt layer resembling a coaster for a nice soft landing when placing down.