The Grav Labs - 11'' Inject Tree Perc Oil Rig provides optimum filtration in its 11-inch frame. This scientific glass bong has a bent neck which means comfort when taking a hit. This water pipe rig has an 8 arm Inject Tree Perc which will filter that smoke for a cleaner and smoother rip. This dab rig comes with a 10mm Male Joint and a matching 10mm glass nail and dome accentuated by the Grav Labs Decal and masterfully crafted in Austin, Texas.
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