Huanyu 90mm Glass Petri Dish with Lids High Borosilicate Glass Petri Dishes Bacterial Culture Dishes for Lab Science Experiment (5pcs: 90mm)

Size Specifications: Diameter of Bottom Dish: 90mm; Height of Bottom Dish: 18mm; Outer Diameter of Upper Lid: 96mm; Height of Upper Lid: 17mm; Thickness: 2mm. High Borosilicate Made: High strength, high light transmittance. （pls note that the dropper is not included in the package.）. Note: To ensure the flatness of the lid and make it easier to remove or cover, there is a certain gap between the bottom dish and the upper lid. This is normal and does not affect normal use. High Temperature Resistance: Up to 400 ° C, Low expansion rate. Please note that our Glass Petri Dishes are NOT resistant to low temperatures and cannot be frozen. High Stability: Acid and alkali resistance, high chemical stability. Exquisite Workmanship. The edges and bottom cover are even, smooth and flat