A 50x9mm petri dish design that is easily opened with one hand, yet closes to a tight seal by its unique double rim. Specimen samples are preserved until you are ready to analyze them. Humidity remains locked in. When loaded with a 47mm absorbent pad, it is ideal for drying coated grids, removing water from grids that are supporting sections.
Available with or without absorbent pads. The dishes are sterilized by Gamma Irradiation