Phoenix Star 11.5 Inches Dab Rig with Double Showerhead Perc PHX619, made from high-grade borosilicate glass, comes at 11.5 inches in height and 5mm in thickness with a fixed downstem. This Phoenix Star dab rig is equipped with double showerhead percs to diffuse and filter smoke when you inhale to make the taste smoother and purer. The water is rolling and bubbling to create a "whirlpool" shape. You can watch it with the transparent glass tube. What a funny pressure reliever! What's more, this oil rig features U shape splash guard to prevent your lips from getting wet.