Features: Improve the magnification of your microscope with this auxiliary objective lens, providing a clearer and more detailed observation experience. Crafted from durable materials, this lens is easy to install and suitable for various microscope models, offering a broader field of view for convenient observation of details. Suitable for students, jewelers, and electronic engineers who require precise observation and testing in their work. Perfect for laboratories, schools, jewelry stores, and electronic repair centers, where detailed microscopic observation is necessary. Uncover the fascinating world of microcosms confidently using this auxiliary objective lens, ensuring accurate and detailed observations every time. Specifications: Material: Plastic, Glass Inner Diameter: Approx. 42mm/1.65in(External Thread), 48mm/1.89in(Internal Thread) Ratio: 0.5/0.7X Package Includes: 1x Stereo Microscope Auxiliary Objective Lens note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.