Modular Box Organiser System for Resistors etc

Hello All,

This is a modular box storage organizer I am working on currently.

Current size is good for resistors, capacitors, and other electronic bits.

In time/if requested the number of box sizes will grow and everything will be backwards compatible, and also allowing for bigger things to be stored in (probably next size will be something for my arduino storage box).

Should a bigger box be required is no problem as long as it's outside dimensions are multiples this first box. (th