These pipes are handcarved and carefully crafted from the same well aged briar that I use for all of my pipes. They are drilled with a 4mm airway, polished internally and unless noted, will pass a pipecleaner. I have reduced the prices of these pipes due to minor cosmetic issues, poorly defined grain, small sand pits or other appearance items. These will not detract from the smoking qualities of the pipe. Some of these pipes are pre carboned and I will apply it to any of my pipes on request. If you purchase a pipe and are unhappy with it for any reason, please return it to me unsmoked within 10 days and I will gladly refund the purchase price excluding shipping cost.