Falcon 150mm Cell Culture Dish with 20mm molded grid, TC-treated polystyrene, 10/pack, 100/case, sterile Actual Dimensions - 142.57mm O.D. x 24.77mm Flat, optically clear polystyrene surfaces for distortion-free microscopic visualization of cells Uniform surface chemistry created by vacuum-gas plasma treatment promotes cell attachment Improved handling of small dishes with the unique Easy-Grip design Nonpyrogenic Sterilized by gamma irradiation Packaged in peel-open, medical-style bags Crystal-grade virgin polystyrene