Feature 110PCS PETRI DISH: Including 10pcs laboratory glass petri dishes, equipped with covers, which has sufficient quantity for easy use and replacement. 2GLASS MATERIAL: Made of excellent borosilicate glass, with thickened wall, which is acid and alkali resistant, has good stability and long service life. 3WIDE APPLICATION: Can be used for industrial and chemical experiment, science project, fun exhibition projects, theme parties and classroom activities, etc. 4STANDARD SIZE: The inner diameter of the lid of the petri dish is 85mm, the inner diameter of the base is 94mm, has standard size and good sealing. 5GLOSSY SURFACE: These experiment petri dishes have flat, glossy surface that allows cells to grow evenly without clumping, providing good protection.SpecificationItem Type: Petri DishMaterial: GlassUses: Widely used for science projects, fun exhibition projects, theme parties and classroom activitiesUpper Lid Inner Diameter: Approx. 85mm / 3.35inBase Inner Diameter: Approx. 94mm / 3.7in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List10 x Petri Dish Bases10 x Petri Dish CoversNoteThis is a glass product, please do not place it on the edge of the high platform to avoid breaking.