This dual incycler is perfect for your concentrates as well as dry herbs. From the 90 degree 14mm male joint, your smoke enters the main chamber to be filtered by the barrel perc. The many slits provide amazing diffusion to filter your smoke. From there the smoke and water travel up the coned incycler tube back down to the barrel perc to be filtered multiple times, never giving a harsh hit. After the incycling process, the smoke then travels up the angled neck to the flared mouthpiece. The flared mouthpiece provides an airtight seal between the water pipe and your lips, while the angled neck helps keep water from entering your mouth. The incycler sits on a ~4" wide base, ensured to never topple over.