Spylx 80 Pack Sterile Plastic Petri Dishes, 90mm Dia × 15mm Deep Petri Dishes with Lids, Lab Petri Dishes with 200 Plastic Transfer Pipettes for Laboratory Studies, Scientific Research. MEDICAL GRADE PLASTIC - Made of medical grade PVC, our sterile plastic petri dishes are safe to use in medical, biological, scientific and other activities. The high-quality plastic makes it optically clear under microscope examinations. WHOLE PACKAGE - You will get 80 pieces of plastic petri dishes in one package along with 200 pieces of pipettes to transfer or measure liquids. Come in standard size with lids, they are 90mm/ 3.54 inches in diameter and 15mm/ 0.59 inches deep. LIGHTWEIGHT & COMPACT - Our sterile plastic petri dishes are made of high quality PVC plastic. Airtight for medical experiment and bacteria & cell culture uses. They are not easy to break or deform. They are easy to clean, use and can be stacked for storage. WIDELY USED - Ideal for bacteria or cell cultivation. Our petri dishes are widely used on medical or other professional occasions. For example, laboratory studies, scientific research, school science projects, etc.