Hard cover / protective pocket case for Sklenka - a popular glass pipe in Czech Republic.
Designed for a friend of mine.
Also throwing in Tubus+ with stash compartment, but this proved to be a very unpractical design so would rather recommend the normal version.
Inner tube: 2 part print - inner tube and the cap - glue together - use the hole to align.
Outer tube: no special instructions.
none of the items require supports, the inner tube might require brim if you have adhesion issues, but I print them without it on MK3.
PETG recommended as material.
The author hasn't provided the model origin yet.