30 Pack Sterile Plastic Petri Dishes with Lid,90 x 15mm Clear Petri Dish for School Experiment Project,Lab,Storing,Seeding,Science Themed Party

Product specifications: Material:Optically clear petri dishes made from virgin polystyrene plastic. Quantity:30 pcs sterile plastic petri dishes with lid. Size:90x15mm/3.54x0.59in. Color:Colorless and transparent petri dishs. The petri dishes are made of high-quality plastics,rugged and stable. Transparent petri dishes are more conducive to observing experimental objects. Preliminary surface prevents gathering of test subjects. Great tools for chemistry,biology,environmental bacteria and organisms.