Hi, little scientist! Are you curious about what the tiny things in the world are and how each can affect life on earth. Let?s get start in biological science with this microscope prepared slides kits. This is a great set of slides with a wide variety of interesting specimens, an excellent tool for learning botany, zoology, entomology, microbiology, and histology. Slides are standard size(75mm x 25mm) that fit different kinds of microscopes. They?re packaged in a standard plastic hinged case, with a slot for each slide. Each slide is labelled with the name, and there's a list inside to tell you what is what without having to pull the slides to read them. 120 Pcs includes Plants: 46 Pcs, Including the six major organs of plants (ie roots, stems, leaves, flowers, fruits and seeds), and Including major plant type, such as lower plants, higher plants, algae, monocots and dicots. Animal: 70 Pcs, including invertebrates, protozoa, parasites, mollusks, insects, crustaceans, fish, birds, and mammals. In terms of microstructure, animal slides include cells, organs, and tissues. The tissues include epithelial tissue, connective tissue, muscle tissue and nerve tissue. Microorganism: 2 Pcs, including Three types of Bacterie Smear and Yeast smear.(The microorganisms are too small to be seen with the naked eye, so some slides appear to be empty, please use a high-power microscope to observe) Special: 2 Pcs, including Letter ?e? W.M. and Euglena w.m.