Microscope Calibration Ruler Slide,4-Scales and 0.1mm Line Resolution,Microscope Calibration Grid/Microscope Camera Calibration Slide/Microscope Reticle/Micrometer Ruler for Microscope

Helps when teaching students how to use the microscope and allows them to understand the magnification of the lenses so they get a better idea of what they are looking at. Allows me to adjust the scopes so that the students don't have so much trouble using them.

I purchased this believing it was a microscope slide, as pictured and advertised. It is NOT! It is a thin piece of printed plastic film with the dimensions of a microscope slide, and as such, it can't be used as a calibration slide unless it is mounted onto a substrate. I am returning it.

La escala está hecha en un material plástico, si bien es cierto que es útil, no decía el tipo de material cuando la compré y podría haber dicho que no era de vidrio para aceptar o no la compra. Sin embargo, bueno al final por el precio es aceptable.