These microscope glass slides are the perfect addition to any laboratory or classroom setting. Clear slides are made of high-quality glass, measuring 3 x 1 inches and 1.3mm thick, providing a durable and reliable surface for viewing specimens under a microscope. With a pack of 20, these slides are perfect for repeated use and experimentation. Whether you are a professional scientist or a curious student, these slides are essential for conducting detailed and precise microscopic observations.