Two layers of wrap, thermally sealed along the sides Delivers the protection of double-wrapping in a single step, in about half the time it takes to wrap or open packages using sequential double wrapping Quick way to ensure that instrument sterility is uncompromised Microbial barrier protection with patented Powerguard™ technology Made in USA Pre-Vacuum Steam and Ethylene Oxide (EO) Compatible Flame Resistance: Meets NFPA Class 1 Blue