Feature:1. Can provide high magnification, including 100X, 200X and 450X magnification.2. The observation head with LED light makes it easy to observe the internal structure of things carefully.3. Children's biological microscope, easy to operate, suitable for home, school, laboratory, etc.4. Encourage children to make scientific explorations and discoveries in a fun way to improve their abilities.5. Microscope kit, using highquality plastic + electronic component materials, suitable for 8 years old + children.Specification:Item Type: MicroscopeMaterial: Plastic, Electronic ComponentsAppropriate Age: 8 Years Old +Battery Model: 2 x AA Battery (Battery Not Included)Product Size: (1-2cm / 0.39-0.79in)Height: Approx. 21cm / 8.3inLength: Approx. 11cm / 4.3inWidth: Approx. 7.5cm / 3.0inOperation:1. Insert the battery (Not Included) and turn on the LED light.2. Turn the focusing knob counterclockwise to adjust the brightness.3. Place the sample on a glass slide and cover the cover glass with another glass slide. Then place the glass slide with the sample on the stage and fix it with a clamp. Move the specimen to the middle aperture and adjust the objective lens to the highest position;4. Adjust the objective lens to 100x, 200x, 450x as needed.5. Adjust the height of the objective lens and focus until the details can be observed..Package List:1 x Microscope (Battery Not Included)4 x Empty Slide1 x Sample Slide1 x Tweezers1 x Collection Box2 x Collection BottleNote:1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.