Microscope Slide Product Type Microscope Slide Material Glass Overall Length 75 mm Overall Width 25 mm Thickness 1.1 mm Edge Type Ground Number of Slides 144 Includes Not Applicable Color Clear/White Refractive Index 1.52 Coefficient of Thermal Expansion 90 x 10-7/ Degrees C (20 Degrees C to 350 Degrees C) Maximum Operating Temperature - Centigrade 350 Degrees C Minimum Operating Temperature - Centigrade 20 Degrees C Autoclavable No Standards Not Applicable Package Quantity 144