This pipe has a flaw. The plateau was a little deeper than I had presumed when turning the air chamber, so when I removed the bark, there was a small hole into the air chamber - you can see it in the bottom view on the next page which will open if you click on the picture above. I made a repair by soaking a couple of layers of paper towel in black epoxy and laying them inside the chamber. I know the repair works, as I first tested it on previous pipes. I smoked the first such a one about eight months before someone bought it from me. At any rate, it has a money back gaurantee, and it is a chance for someone to try out a second chamber pipe for cheaper than normal. sold