The Mathematix Glass - Anchor Bubbler is a scientific glass rig standing 21cm tall and featuring a grindless/smooth male 14.5mm joint. It has six slits in the anchor which create a fantastic diffusion experience during your sessions. Hosting a great looking Mathematix label in Aqua, black and white it also includes math symbols on both the neck piece and base finishing off the look in true Mathematix style. It comes with a glass vapour dome with an octopus design along with a grindless female quartz banger allowing the piece to be used for concentrates. All Mathematix glass is made in California, USA. Mathematix puts all of their glass through a host of tests to ensure only quality products are supplied.