- Material and compatibility: The mirror/body is made of an aluminum alloy and optical glass, providing light weight, corrosion resistance, and wear resistance for long life. The wide-eye-point eyepieces use a standard 30 mm mounting and are compatible with any stereo microscope that uses the same diameter. - Optics and construction: The full set is well designed and well made. The lenses are crafted from high-quality optical glass with a high refractive index, producing brighter and clearer images than many alternatives. - Field of view and durability: Offers a wide field of view for comfortable viewing. The lens is durable and designed for a long service life. - Easy installation and use: Wide-angle eyepiece with a high eye point, standard size, easy to install after attaching to the microscope. Suitable for use with microscope eyepieces. Ideal for biology microscopes to support learning, work, or research. - Applications: Ideal for classroom and lab demonstrations, biological observation and documentation in research, and hobbyist or educational use at home or in a workshop.