Zob Zobello Wubbler Dab Rig Looking for a great concentrate piece? Zob Glass has you covered. This stemless beaker is approx. 11 inches tall and is made of 5mm thick glass. This beaker features the Zob zobello perc for excellent percolation. This pipe has a gently angled mouthpiece for long sessions. It comes with a 14mm banger. Zob goes to great lengths to make sure each piece is one of a kind, so the label you receive most likely will be different than the one pictured.