The bottles are provided as 125 ml, 250 ml, 500 ml, and 1000 ml, and are shrink-wrapped in a double-walled corrugated paper boxes and thoroughly sterilized for best quality. Molded-in graduation scales. Shrink-wrap tray modules, Media Bottles are Non – pyrogenic, Non – cytotoxic, DNase / RNase – free, N on-hemolytic, Human DNA – free