Plastic petri dish with cover for culturing cells and other scientific applications These sterile petri dishes are ethylene oxide sterilized and come with lids to keep specimens safe during incubation Made of durable plastic material:these petri dishes are ideal for laboratory ...Plastic petri dish with cover for culturing cells and other scientific applications These sterile petri dishes are ethylene oxide sterilized and come with lids to keep specimens safe during incubation Made of durable plastic material:these petri dishes are ideal for laboratory experiments and mold testing kits Use potato dextrose agar or other nutrient agar to grow and observe bacteria, fungi, and other microorganisms Compatible with a variety of lab supplies including specimen cups with lids, agar plates, and parafilm tape for sealing The dish buddy included in this petri dish kit makes it easy to handle multiple petri dishes at once