This matrix perc straight tube is the perfect mini bong for either concentrates or dry herbs. This piece stands at 8" inches tall making it small and compact for traveling or smoking on the go. The matrix perc contains dozens of slits for diffusion and filtration. Watch as all your bubbles of smoke are filtered. This piece also has an ice pinch that allows you to add ice to further cool down your smoke. Featuring a 14mm female joint this piece includes a dry herb bowl.