3371216 - Moisture Barrier Bag, 3370 Series, 12 x 16, 100 EA0.0036" (3.6 mil) Thick Bag constructed from multiple layers of aluminized polyester and polyethyleneDesigned for moisture and electrostatic discharge (ESD) sensitive items (such as SMT). Meets ANSIESD S20.20, ANSIESD S541, EIA 541, JESD625-A, and EIA 583.