That is an interesting square-pressing box. Because the dimensions of each cell are fixed, the cigars that are placed into them must be identical in circumference, to get consistent pressing. For each different ring gauge, a different box would be required.
I have seen the use of an undivided pressing tray, into which a floating wood divider is inserted between each cigar, presumably to allow the same tray to be used for square-pressing cigar batches of different ring gauge.
Bob



