1.plastic sterile petri dish 2.35,55,60,65,70,75, ... uniform cell growth without clumping4, EO sterilized5, Vents in the lid provide consistent gas exchange JHD001Petri Dish Ø35×15mm,PS10pcs/bag ... ,PS1pcs/peel pack,2000pcs/carton,10pcs/peel pack,5000pcs/carton Plastic petri dish