Multifunctional Microscope Micrometer Slide Area Measuring Ruler Eyepiece
The eyepiece rectangles grid size, length and width ratio of 2:1, which is L long, L/2 wide. 2pcs Plastic Slide Holder Staining Jar With Lid For Laboratory Microscope Use. Set of 3 Laboratory Toy for Students Handheld Kids Microscope Children.