The outside size is around 162x161 mm and you can screw it on the table or shelf with 4 mm screws.

It is useful for me, maybe someone else has a need to use it. That's why I uploaded it.

I made two inserts, one with organizer and one without anything. The last one is inside 155x135x34 mm and the other is 4x (around 76x66x34).