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Use the Hammer with your favorite glass piece!
The Glass-on-Glass Stem adapts to any 14mm glass slide so you can now use the Hammer with all of your favorite glass pieces. The GonG Stem has been carefully designed to work perfectly with the Hammer Vaporizer airpath. Now you can get high quality vapor production from water pipes, bubblers and any other piece that fits a 14mm GonG Stem.