Here's a new trick for your Gravitron introducing the Bubbler Bowl that fits both sizes of your Gravitron! This Bubbler bowl is cool in so many ways. It has the Grav Labs name behind it, so you know you're getting the best, and by using it you can turn a regular Gravitron into a people pleasing, party monster. The Grav Labs name is well-known in the Bong world for being masters in a tough trade. You won't be disappointed with your new bowl.