BL Glass Bong Drum PercolatorShapely, robust and very handy glass bubbler from Black Leaf . So that the smoke does not become too hard for the lungs, the small, puristic beauty has a drum percolator. This ensures with numerous water bubbles cooling and filtering of the smoke. The stable round pipe base ensures a secure stand, while a broad handle makes it very easy to pull up the lift off bowl for the final kick. With this handy glass pipe, concentrates such as oil and wax can