What do you get

Immediately warn you that for a really good master class I do not have pictures. Missing tried to draw. I hope it will more or less clear.
Let's begin.
1) You will need 4 rings, 3 for most boxes, and 1 for the cover. (Rings, in principle, can be made from wire, but would be willing to ponadezhnee). I have a diameter of about 7 cm
Immediately warn you that for a really good master class I do not have pictures. Missing tried to draw. I hope it will more or less clear.
Let's begin.
1) You will need 4 rings, 3 for most boxes, and 1 for the cover. (Rings, in principle, can be made from wire, but would be willing to ponadezhnee). I have a diameter of about 7 cm