Cheech & Chong's Anthony's is made from heat-resistant borosilicate glass and is equipped with a reinforced fixed downstem that connects to the powerful, double-tier showerhead percolator for maximum filtration.This powerful oil rig has a reinforced fixed downstem with a male 14.5mm joint. The glass concentrate nail that is included with your purchase slides in the joint perfectly and the 14.5mm vapor dome with female joint seamlessly connects with the 14.5mm male joint. The vapor dome comes with two side handles for easy removal that also act as perfect roll stoppers.