35 x 12 mm polystyrene petri dish rnase and dnase free sterile 500 cs

Sterile 35mm polystyrene petri dishes for growing bacterial cultures and non-adherent mammalian cells Petri dishes have a super-flat transparent surface for excellent viewing and includes a lid Packaged in sleeves of 20 dishes. 500 total petri dishes Sterilized by E-Beam, SAL=10-6