Zob Princess Puck Perc Dab Rig This bubbler from Zob Glass is the perfect piece for your daily concentrate needs! It stands approx. 8 inches tall and is 5mm thick. This pipe features the Zob puck perc. This perc gives excellent percolation to cool and filter the smoke before it enters your lungs. The pipe comes with a 14mm banger. Zob goes to great lengths to make sure every piece is one of a kind, so the label pictured will most likely be different than the one you receive.