Micrometer set

I made a set of tools for micrometer experiments, one for each student, and one that can be organized into groups of four students (and can also be stacked and moved around).*The one at my previous school was an old micrometer set, and many of the schools I have worked at and checked had the same model. Therefore, it was made based on the size of that micrometer, so the size may not match newer ones or ones made by a different company. Please understand that. ★Background to creationIn Japanese high schools, micrometer experiments are a staple of biology. (I don't know about the situation in other countries...)"Objective micrometers", "ocular micrometers", and the "caps" on the telescope tubes used to set the ocular micrometers - these small items are distributed to the students' experiment tables and then collected. Even if you arrange them in order when putting them away in drawers, they quickly fall apart, and you have to rearrange them again when dist