This stemline rig by Hemper Co produces excellent diffusion and percolation. It features a stemline percolator with multiple diffusion slits to diffuse your favorite smoke or concentrates. In addition to the excellent function, the compact size makes this rig an amazing on-the-go travel companion. The bent neck also prevents splash back. Stands approx 6.5'' inches tall and features a 14mm female joint. Tobacco bowl included.