Microscope special cover Glass It is generally used in cooperation with a microscope slide. Good replacements and articles for school laboratory. Size: 22x22mm, thickness 0.13-0.17mm Material: Glass Color: Transparent Quantity: 100pcs / small box Purpose: Making collection microscope observation of specimens 1, Making the object under observation forming a thin film, easy to transmit light, easy to observe; 2, Make the specimen is relatively fixed; 3, Facilitate to use capillary phenomenon, to make add all kinds of reagents(Dye, acid, salt solution) forming a gradient; 4, To avoid sample contamination. Package include: 100 pcs 22*22mm Microscope Cover Glass Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!