Phoenix Star 7 Inches Dab Rig with 14mm Quartz Banger PHX568 is constructed of high-quality boros glass and measures 7 inches in height. The small size oil rig is convenient to use when you are outside. The portable dab rig has a 14.4mm female joint size and a 14.4mm male quartz banger. The 4mm thick quartz banger can let you and your customers get the ideal temperature faster for the original and purer flavor. And the oil rig is equipped with an insert perc to diffuse the smoke to create more bubbles and more interactive space with water for better filtration to offer smokers smoother and cleaner tastes. The bubbling and rolling water from the transparent glass can let you be relaxed.