The short kuripe is used for self-administration and the longer tepi is used to blow snuff into someone else's noses.
Simply fill the snuff pipe with the desired amount of snuff, put the nose piece in the first nostril and blow a short but intense "tsu" into the mouth piece. Like to spit but without saliva. The other nostril need not to be cloased/held, nor do you need to inhale with your nose; in comparison to mysterious activities in the big city night life. The snuff should be blow up in the nose, not "snorted".
The tubes are available in bamboo, acrylic and metal. Bamboo gives a traditional impression and feel but can not be trampled like the sturdy metal pipe with a slightly more modern look.