This is a small container for holding tiny parts while you are working with them.  The walls are sloped outward and the corners rounded to make it easy to get parts out.  There is a 0.5mm divider in the bottom to help keep items from mixing up. The idea is to keep it low so it is not in the way if you have many parts you don't mind mixing.

The base is 50mmx50mm, the top is 70mmx70mm and it is 30mm tall. The walls and bottom are 1mm thick.

For printing use settings that give you everything solid.  I used 5 perimeters and 5 layers for top and bottom.  No supports needed.