Cell culture plates are flat, sterile plastic dishes used to grow and maintain cells in a controlled environment for laboratory experiments. These plates come in various formats, including multi-well plates (e.g., 6, 24, 96 wells) that allow for high-throughput analysis. They are designed to provide a surface for cells to adhere to, and they may be treated or coated to enhance cell attachment and growth for specific applications like drug screening or cellular assays.