This high-precision manual rotating stage is made of aluminum alloy, which is clean and free from contamination, making it suitable for biological experiment environments. Driven by a micrometer, the stage adjusts smoothly; its 360° rotation function allows microscopes to observe biological samples from different angles, while the ±5° fine adjustment enables precise focusing on sample details. In biological sample observation work, it helps researchers clearly observe features such as cell structures and microbial morphologies, providing strong support for life science research.