Janstrip pressure-sensitive envelopes are made from blended polyethylene and are ideally suited for keeping manuals, maintenance logs, and other important documents at hand. Unlike Ziploc style plastic-on-plastic bags, they feature a Velcro brand closure that breathes to prevent moisture from being trapped and are easy to seal by simply touching both sides together. Suitable for holding components, tubing, and instruments and allowing them to be sterilized right inside, the envelopes can be re-opened and closed repeatedly. Flexible and forgiving, they are available in sizes ranging from 4? to 15? sq. and can be custom printed.