STERIS Vis-U-All Self Seal Pouches are one of the most reliable sterility maintenance systems available today with their combination of either 45 pound medical paper and 2.0 mil shatter resistant polypropylene-polyethylene, or 1073B Tyvek and 2.5 mil polypropylene-polyethylene. Each pouch also has chemical indicators for both steam and ethylene oxide (EO) sterilization. The Vis-U-All Self Seal Pouches are ideal for the sterilization of rigid or sharp items that may puncture other paper pouches. In addition the pouches are designed to be easily aseptically opened to preserve sterility. Self sealed pouches have an adhesive strip that allows quick, consistent seals.