This is a small cylindrical container with a screw cap that can be used to store all sorts of things in your pocket or bag. You can store something about 15 mm in diameter and 100 mm in length. There is a small cone shape at the bottom to keep anything you put in centred. If printed correctly, this should be airtight.
This will take a while to print due to the knurling. Change the acceleration settings to speed things up.