The Bresser Junior 40-640x microscope is an optimal microscope for beginners. Compact and lightweight, ideal for mobile use. Magnification: 40x-640x, zoom eyepiece Can be used anywhere thanks to battery operation. Box contents: microscope, 3x AA batteries, practical transport case, cover glasses and object tags, permanent preparations, yeast, sea salt, shrimp eggs, inclusion agent gum media, empty sample container, microscope cutlery, aperture wheel/filter disc, measuring cylinder, shrimp incubator, MicroCut for creating preparations, Petri dish.