Crafted from crystal-grade virgin polystyrene for optimum visibility. S-Proscience cell culture plates are available with cell culture-treated and nontreated surfaces.• Clear virgin polystyrene, meets USP, Class VI standards• The well edge design prevents cross-contamination, effectively reduce liquid evaporation • Plate cover corner design with alphanumeric design to facilitate identification and marking • DNase/RNase fee, non-pyrogenic and non-cytotoxic• Sterilized by irradiation