This GRAV Straight-Based Water Pipe measures 8 inches in length "32mm tubing was used to create this towering structure. It has large orb perc at the end of the downstem that diffuses smoke through water and is fastened inside the pipe to prevent damage. The piece's tiered body prevents water from splashing out. The straight-based water pipe comes with a 14mm GRAV Cup Bowl and works best with 1.5 gallons of water "of a liquid