The bubbly vapor is pulled down the fixed downstem and through the submerged percs for filtration and cooling. This results in a smoother more enjoyable hit that’s full of flavor and less harsh on the throat and lungs.The Oil Rig has a neck that ends with in a comfortable rimmed mouthpiece and comes with a thick circular foot that provides great stability. Beautiful accents can be found around the whole Glass Piece, the rim of the circular foot and the rim of the mouthpiece. Check out our wide selection of quality bubblers, bongs and hand pipes available to order at Smoknfly.com, your number one online head shop. This solid Oil rig is great for the smoke glassware collection and will impress all your smoke buddies. Check out our wide selection of quality bubblers, bongs and hand pipes, smoking Accessories available to order at Smoknfly.com, your favorite online head shop. Cheers!!