Stackable Storage Box

This is a stackable storage box. The small parts are meant to go into the "O"s. If you have two of these boxes, slide one on top of the other and secure it with the small parts of the "O"s. This is my first own design. I am into 3D modeling for two days, so the print might be faulty. I cannot check, because I don't have a 3D printer.

IN CURA, THE DESIGN- SHOWS AS MANIFOLD!
BEGINNER MODEL!
MIGHT CONTAIN FAULTS.

btw please let me know if the print works ;)

also don't wonder why it is called always good. it is supposed to be called everything good, lol