Specifications: Brand New Size: approx. 22*22mm Thickness: 0.13-0.17mm Material: glass Color: transparent Quantity: 100pcs/small box Microscope special cover glass It is usually used in conjunction with a microscopic slide. Good alternatives and articles for the school lab. Purpose: to make specimen collection observation microscope Make the object under observation form a thin layer, easy to transmit light, easy to observe. Make the sample relatively stable. Facilitate the use of capillary phenomenon, to introduce the addition of all kinds of reagents (dye, acid, salt solution) gradient formation. To avoid sample contamination. Package included: 100pcs x glass microscope cover note: Please allow 1-2mm errors due to manual measurement Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same