GRAV® Large Gravitron® 33 Dixwell Evidence: The zipper is a

Evidence: The zipper is a critical component of the bag's smell-proof system

Design CD Jewel Case Form Factor Offers superior discretion and portability

including different capacities and brands

repeatable brew every time

GRAV® Large Gravitron® 33 Dixwell Evidence: The zipper is aMade from durable, heavy duty 5mm borosilicate Closed system keeps smoke contained and conserves bud Platinum cured silicone grommet protects glass touchpoints Sleek design is super easy to clean Includes a 19mm Funnel Bowl The world's first all glass gravity bong. The Large Gravitron takes the gravity bong out of the dorm room. With this classic design, gravity and pressure work together to give you huge, efficient hits. But unlike homemade grav