Cole-Parmer Sterile Polystyrene Petri Dishes

Sterilized dishes are ready to use Constructed clear polystyrene Lids contain stacking rings for increased stability Ventilation ribs reduce condensation and allow air circulation Working volume of 7-8 mL Disposable polystyrene dishes have convenient stacking ridges for enhanced ...Sterilized dishes are ready to use Constructed clear polystyrene Lids contain stacking rings for increased stability Ventilation ribs reduce condensation and allow air circulation Working volume of 7-8 mL Disposable polystyrene dishes have convenient stacking ridges for enhanced stability. Consistent flatness allows for even media distribution. All dishes are supplied sterile (gamma-irradiated) and come packaged 20 dishes/bag.