Sterile sealing films prevent evaporation and protect samples during processing, storage, and shipment. They have superior quality film and uniform adhesive. With 2 perforated end tabs for accurate positioning. Removable end-tab backing for sealing around ends of plate. Films are packaged in zipper bags. Manufactured from 2mil polyester. 80x146, -40C to 120C, ELISA, Co2 exchange-no, Pierceable-No, DN/RNase free-No