Premium optical lens devised for microscopes, featuring two focal lengths: 180mm and 200mm for versatile applications. Constructed from optical glass with advanced coatings for superior light transmittance and clearer imaging. Ideal for use in laboratories, schools, and educational , perfect for sample observation and eyepiece protection. Compatible with UIS2 optical systems, ensuring optimal performance and reliability in microscopy. Durable two-piece glued devise enhances stability and precision in imaging, making it a must-have for any microscopy setup.