Crossed Colored Threads Wholemount Prepared Microscope Slide

This single prepared microscope slide contains a whole mount of crossed, colored threads in three different colors. The slide is designed for introductory microscopy instruction, providing students with a simple tool for learning focusing techniques and understanding depth of field. Each slide measures 75 mm (3 inches) wide, 25 mm (1 inch) long. It arrives in a protective cardboard casing and is labeled for easy identification. All materials are completely inert and sealed in glass.