200 pieces of 22mm x 22mm pre-cleaned microscope rectangular coverslips Superb flatness uniform distortion-free surface Non-fogging, non-sticking and no bubbles, scratches or striations Dimensions: 22mm x 22mm Thickness: 0.13 - 0.16 mm Discover the world of microscopy with these Standard Microscope Cover Slips from Karter Scientific. This pack of 200 coverslips features 22x22mm pre-cleaned, rectangular slides made of high-quality glass. They offer superb flatness and a distortion-free surface, ensuring clear and accurate observations. These coverslips are non-fogging, non-sticking, and free from bubbles, scratches, or striations. With a thickness of 0.13 - 0.16 mm, they are compatible with most microscope objectives, including achromatic lenses. These coverslips are lightweight, weighing only 0.11 pounds, and come in standard dimensions for convenient use. Ideal for educational and laboratory settings, these microscope cover slips are a must-have for any microscopy enthusiast.