Summary

A container to hold and carry your joints .
It can hold a 9 cm joint, up to 14 mm in diameter
You can use it as a kaychain

You should use a -0.06 ~ -0.12 horizontal expansion to ensure the screw fits nicely
Also, i reccomend you to print the two parts separatedly . Print the tube with lots of brim, and the lid with no brim , only skirt.