Petri dishes are essential laboratory tools widely used in microbiology, cell culture, and other life science applications. These shallow, cylindrical containers feature a clear lid and base, typically made of glass or polystyrene, allowing for easy observation of samples. Common products in this category include sterile plastic Petri dishes (50mm-150mm diameters), reusable glass dishes, vented dishes for gas exchange, and specialized dishes with grid markings for colony counting. High-quality Petri dishes exhibit excellent optical clarity, uniform thickness, and reliable sterility. Some advanced variants offer features like ultra-thin walls for improved microscopy or surface treatments for enhanced cell adhesion. These products are indispensable for bacterial cultivation, antibiotic testing, and various biomedical research procedures.