Falcon® 150mm Cell Culture Dish with 20mm Molded Grid, TC-treated Polystyrene, Sterile, 10/Pack, 100/Case 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 Sterile Packaged in peel-open, medical-style bags Crystal-grade virgin polystyrene