Box contents: the pack contains 1 iL37 polarized lighting ring light, size 8.2 x 2.2 cm, designed for lighting microscopes. Polarizer + analyzer for: the built-in polarizer and analyzer work together to minimize reflections and make the texture visible on reflective and metallic samples for more accurate inspection. POWERFUL 96 LED SYSTEM: The 96-LED arrangement produces bright, uniform illumination that improves contrast and detail while keeping power consumption low for a longer period of time. FULL ROTATION RANGE & REMOVABLE ANALYZER: The 360 degree rotation allows for fine tuning of the polarization contrast and allows quick switching to non-polarized mode to meet different observation requirements. DURABLE DESIGN & WIDE COMPATIBILITY Made of wear-resistant, heat-resistant metal for reliable use; Suitable for stereo microscopes in education, inspection, jewelry making and electronics. Please check compatibility with your microscope model.