This is a perfect microscope for students to learn science. It comes with full optical glass elements, metal framework, 360 degree rotatable monocular head, coarse & fine focusing, and LED illumination. It offers five magnification settings, 40X, 100X, 250X, 400X and 1000X. It is an ideal microscope for home school or for students from elementary to high school. It is also an excellent instrument for hobbyists. Features : A Great Affordable High Power Student Microscope with Coarse & Fine Focusing 45 Degree Inclined 360 Degree Swiveling Monocular Head with Locked-in Eyepiece Built-In Contemporary LED Illumination Plain Stage with Clips and Stain Resistant Finish Fully Coated Optical System High Resolution Offering Sharp Images Five Levels of Magnification: 40X, 100X, 250X, 400X and 1000X Single Lens Condenser and Disc Diaphragm Focusing Control Knobs on Both Sides Full Optical Glass Elements Precise Ground Glass Lens All Metal Mechanical Components Solid Metal Frame with Stain Resistant Enamel Finish Ideal for Kids 10+ Manufactured under ISO 9001 Quality Control Standard Excellent Five (5) Year Factory Warranty Specifications : Head: 45 degree inclined monocular Eyepiece: WF10X & 25X Objectives: 4X, 10X, 40X Condenser: single lens with disc diaphragm Stage Dimensions: 3-1/2"" x 3-1/2"" Illumination: LED Power Supply: 5V USB or 3 AA batteries (not included) Packing List : One Monocular Microscope with Three Objectives One WF10X Eyepiece One 25X Eyepiece One Dust Cover Two Clips One USB-C Power Cable Shipping Weight: 8 lbs