[Material] A dish or plate is a shallow transparent lidded container. These clear culture dishes are made of thick-grade polystyrene, sturdy and durable, with a smooth and highly transparent surface for clear visibility. They meet standard quality requirements for quantitative analysis and accurate testing. [Sterile] These lab dishes with lids are sterilized using ethylene oxide, ensuring safety and suitability for laboratory use. Made from polystyrene plastic, they meet standard quality requirements. Suitable for liquid culture, agar plates, and mycology research, ideal for science kits. [Package] Product size and packaging include plastic dishes with vented lids. The vented lid design allows for improved gas exchange, and the dishes are stackable for efficient storage. [Applications] These sterile dishes with lids are suitable for laboratory analysis, school science projects, biological research, mycology studies, general training, and educational activities. Color: Transparent Material: Plastic Size: 60 x 15mm Package Contents: 30 x Plastic Dishes Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1-3cm.