STERIS Vis-U-All Heat Seal Tubing is 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 Heat Seal Tubing is ideal for the sterilization of rigid or sharp items that may puncture other paper pouches. In addition, tubing allows various custom lengths to be made without wasted material. Heat sealed tubing offers more confidence in the durability of the seal.