Confirms that all 3 sterilization parameters for sterilization have been met: time, temperature, and presence of steam. Internal and external multiparameter indicators are printed directly on the pouch. Eliminates the extra step and cost of adding separate multiparameter strips to each pouch. Medical-grade paper with triple seals; chevron safety seal at base for added protection; thumb notch for easy opening. Not made with natural rubber latex. Made in the USA. Class 1 indicator.