Petri dishes, PS, sterile, stackable, with blotting papier, Ø 50 x H 9 mmPetri dishes, PS, sterile, stackable, with blotting papier, 50 x H 9 mm Material: PS. Non sterile Stackable, tight sealing and therefore suitable for long incubation times without drying out. Lid with matt white labelling space and projecting edge for single handed opening. Note: The Petri dishes are manufactured using an aseptic process and validated to ensure a Sterility Assurance Level of SAL 10 3. With absorptive paper inserted, e. g. for growing