lnternal indicators eliminate the need for an additional indicator strip, saving you time and money(between 20-3O% per use.) Pre-folding feature on all self seal pouches means a quick, easy and accurate fold everytime. Large flap and offset lip for an easy grip and opening. Transparent pouches have easy-to-read process indicators, both inside and out. Pouches are constructed from strong, quality materials which easily withstand heavy instrumentation