Mathematix produces the finest beaker bongs in the market. This fine example features a removable downstem with a 6 arm tree perc! The slits in each arm shreds and diffuses your smoke to give you a smooth hit. The voluminous beaker bottom provides great stability and allows you to draw big hits. This piece is 14mm female jointed and comes with a 14mm male tobacco bowl. Made in California by Mathematix glass using high quality borosilicate glass.