This cell culture/petri dish with a lid is designed for optimal performance. It has a Nunclon™ Delta surface treatment which is a proprietary surface modification that promotes maximum adhesion for a broad range of cell types. Made from Permanox™ plastic. Top and bottom stacking rings allow for easier handling and more stable stacking. Comes with air vents for gas exchange. Includes a certificate which assures user of biological performance as well as traceability. Sterilized by gamma irradiation. Dimensions (Height x O.D.): 60 x 15mm. Culture Area: 20.8cm². Working Volume: 5mL. Material: Permanox™. Gamma Irradiation Dose Range: 19-28 kGy. Nunc #: 174888.