Discover the fun of microbiology with this set of plastic Petri Dishes and Nutrient Agar. Nutrient Agar is used as a culture medium to cultivate various household bacteria. Includes: 3- 90mm petri dishes, 1- 3g bottle of Nutrient Agar and detailed Agar preparation instructions. 3 dishes per set, bundle of 3 sets, 9 dishes total