Reliable Material: These petri dishes are made from premium plastic, not easy to break,ensuring a smooth and transparent surface that is easy to clean and reusable,clear for good clarity in microscopic examination Easy to Observe: These petri dishes with lids are clear, can write something on with a marker, and then you can clearly observe the change of seeds or cell culture Convenient Design: Each laboratory cell culture plate comes with a lid, providing excellent protection for your samples and ensuring accurate quantitative analysis Proper Size: These plastic petri dishes with lids are approx. 35 mm dia x 15 mm deep, are project supplies, suitable for various experiments and research activities Versatile Use: These culture dishes with lids are are suitable for laboratory analysis, school science projects,laboratory analysis in medical, biological, and scientific research, plant collection,insect observation › See more product details