Feature: 1. 450 times children's microscope, this light and segmentation microscope is so fun. Need 2 AA batteries (shipped without batteries) 2. Through scientific exploration and practical experience, use key scientific tools. Children can collect their specimens according to the activity guide, and then get an amazing close-up view magnified up to 450 times. 3. Give children a fun educational toy to let them participate, entertain and learn! 4. This microscope is a children's version, which reduces the cumbersomeness of the microscope and is convenient for children to learn and operate, but it still needs to be mobilized during observation. 5. Take children to appreciate the microcosm, explore nature, and let children fall in love with science and stay away from video games. Specification: Condition:100% Brand New Item Type: Children's Microscope Purpose: Suitable for holiday gifts, etc. Size: Approx. 21.3 x 11.8 x 7.3cm / 8.4 x 4.6 x 2.9in Material: ABS + Plastic Battery: 2 x AA battery (not included) Instructions: 1. If you can't see the image after carefully adjusting the focus, it may be that the content of the specimen is not in the field of view, (due to the magnification effect, only a small area on the specimen is seen in the lens) slowly move the specimen and adjust the focus again, This process requires carefulness and may require multiple movements to successfully observe the target. 2. After adjusting the image, you can move the light source up and down, and different light intensity will have different picture effects. Be careful not to over-travel operation. There is a small stopper in the focus knob. When the lens is lifted up to this point, it is the upper limit of the stroke. At this time, turning the focus knob to lift the lens forcefully will damage the walking rack and affect the lens up and down! 3. The object placed on it for observation can be anything, but the object used for observation requires a thin skin to observe the details on it.. Package List: 1 x Microscope2 x Collection Bottle1 x Specimen Box1 x Tweezers1 x Fiber Sample Slide4 x Empty Slide Note: This microscope is a children's version. It is designed for children to understand scientific biology. Its design is to reduce the tediousness of the microscope and facilitate the learning and operation of the microscope, but it still needs to be mobilized during observation.