Well plates are flat, rectangular plates with multiple wells used for conducting experiments, assays, and cell culture. They are commonly used in high-throughput screening, drug discovery, and genomics research., Well plates are available in various formats, including 6-well, 12-well, 24-well, 96-well, and 384-well plates. They are typically made of polystyrene or polypropylene and are designed to be compatible with automated liquid handling equipment.