Easy to observe:the culture dish has high transparency, and there is no bubble in the glass. In culture, you can easily and clearly observe the sample under the microscope. Even after several , it still maintains high light transmittance. Reusable and autoclaved:Our laboratory culture dishes are made of high-quality borosilicate glass, which can be reused and autoclaved. In addition, its high chemical stability makes it an effective container for chemicals in the laboratory. Packaging of inoculation ring:The inoculation frame is composed of plastic handle and copper bar with chrome plated . The inoculation ring is made of - alloy. It is very suitable for laboratory cell and tissue culture. Petri dish with cover:the diameter of the cover is slightly larger than that of the plate by about 6 mm to allow air circulation, and the cultured agar Petri dish is placed upside down to prevent water condensation. Careful packaging:We use polyethylene foam and cardboard packaging to protect our Petri dishes from damage during transportation and that the products are delivered to you intact. If there is a problem with the product you received, please contact us and we deal with it as soon as possible.