It are designed for use in laboratory settings where precise observation and handling of liquids or substances are required. Made from high-quality polypropylene (PP), these watch glasses offer excellent chemical resistance and durability. The 60 mm diameter is ideal for small to medium-sized experiments, providing a clear, flat surface for evaporation, heating, or covering containers. These watch glasses are an essential tool for laboratory procedures, offering reliable and safe handling of substances during scientific analysis.