Discover precision and clarity with Erie Scientific Micro Cover Glasses. These square cover glasses, measuring 18x18 mm, are crafted from high-quality glass, ensuring optimal transparency for your microscopic observations. Designed for use in laboratory settings, they provide a perfect fit for standard microscope slides. The No. 1 oz thickness offers excellent durability while minimizing distortion, making them ideal for a variety of applications, from biological research to educational purposes. Enhance your microscopy experience with these reliable and easy-to-handle cover glasses!