The divider tab fits perfectly into the Field Notes Archival Box. Dimensions are close to the original one. You can also flip them around to have the tap either on the left or right hand side.

Instead of writing the topics onto the tab you can also add the text to the print with the slicer of your choice or add some icons. Should look great if you perform a color change when reaching the text or icon during printing.

For printing I chose PLA and 0.2 mm layer height with a 0.4 mm nozzle. Infill was 100%.

Happy printing!