The Globe Scientific 1380-50D glass microscope slide measures 25 x 75mm and is made of 1.0mm thickness white glass for image clarity. It has a gold frosted-coating end to accommodate labeling with a pencil or marking pen. The slide has ground edges and corners for safe handling and has been washed, rinsed, and dried dust-free for immediate use. The case contains 1,440 slides. This glass microscope slide is suitable for use in a variety of microscopic examination applications.Globe Scientific manufactures labware and supplies for use in clinical, research, education, veterinary, and industrial laboratories. The company, founded in 1983, is headquartered in Paramus, NJ.