Here's the thing about most 6mm filtered pipes - they usually smoke cool and dry, but the experience is over too quickly because the pipe and chamber are too small. These Crown Walnut Matte Filter pipes break that mold. These pipes are about average in size by modern standards, and all have chambers around 3/4", which is, again, around average. These ones in particular sport a rich, warm, walnut staining with a soft, easy to- maintain matte finish. To add to the package, you get to choose the exact shape you want. The kicker is the reasonable price. Get exactly what you're looking for and spend less with Crown Walnut Matte Filter pipes.