M.E.T.R.O. Pipe is compact, lightweight, built tough and designed to express old world craftsmanship with its brass finish.. M.E.T.R.O. Pipe fits in your pocket, it’s spill proof, indestructible and makes traveling easy with built-in herb storage compartment. The swivel mouthpiece doubles as bowl cover to stuff out burning herbs - life the mouthpiece slightly to open the storage. Built from medical grade billet aluminum and anodized, M.E.T.R.O. will last for many years without deteriorating. To clean, simply unscrew the bottom 3 Allen screws. M.E.T.R.O. uses 0.625" stainless steel or titanium screens. Made in USA.