CellProCell Culture Dish are High clarity polystyrene Petri dishes available in traditional 1 compartment styles as well as 2 compartment 3 compartment and 4 compartment options Our Petri Dishes are designed to be used for bacterial cell culture applications in all types of labs Our Culture Dish are manufactured from high clarity non-treated polystyrene and feature a flat transparent surface for unobstructed viewing of the bacterial cell cultures contained within the dish Each case of our Petri Dishes are packaged into PA/PE sleeves of twenty Petri dishes each per PA/PE sleeve which makes them ideal for maintaining sterile technique and working in smaller batches if needed depending on your application needs and requirements These Petri Dishes feature three vents for gas exchange and a bottom ridge allowing for easy handling transport and storage of the Petri Dishes as well as compatibility with automation systems They are shipped and packaged DNase and RNase free and non-pyrogenic