50 Pack Plastic Petri Dishes with Lid, 90mm Dia x 15mm Deep Sterile Petri Plates with 100 Pack 3 ml Plastic Transfer Pipettes, Petri Dish Set for Lab, Experiment, Biology, Microbiology Studies

Made from medical grade polystyrene, unvented, with lids, easy to use.

With EO sterilization, they can be used for bacteria & cell culture.

Clear lids allowed to marking different content and conditions from outside in order to measure the growth.

Top and bottom edges are squared off to provide a firm, sure grip.

The dishes have a flat growth surface for uniform cell growth without clumping and vents in the lid provide consistent airflow.