Single, prepared microscope slide of cross sections of hydrophytic and mesophytic. The leaves are placed side by side on a slide for easy comparison. It is great for biology classrooms to explore structure-function connections as per NGSS standards. Arrives in protective cardboard casing. Each slide measures 75mm (3") wide, 25mm (1") long, and 0.06" in height. Expertly prepared and labeled for easy identification. All materials in Eisco Labs slides are completely inert and sealed in glass.