Vertex K8400 Z-Rod Protection Shell

Print these 5 shells and place the smaller into the next bigger one. Than put them to the top of the Z-Rod. This should protect the rod from dust and other dirt.
My printers storage position is always Z-Stage moved to the lowest position, so the the rod is completely protected.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/lwAIgkCW09D