The GRAVÂ® Mini Classic Sherlock has a surprisingly deep bowl for such a compact piece. This makes it the perfect pipe to pass discreetly around a circle of fellow sleuths. With a sharp crimp and an inverted mouthpiece that both catch ash, the Mini Classic Sherlock gives you silky smooth hits in a portable size. Filtration type: Inverted Ash Catcher Mouthpiece. Length height: 4".