100 piece Lot of EDCO Mil Spec ESD Bags, 4 x 4 inch open ended to be sealed by bag sealer, or to be taped, 1 Mil thick, Silver Foil, ESD/EMI protection, Mil-B-81706-G Type-I, NOS - New Old Stock, Date Code 1998, been stored in a clean room environment from a Semiconductor company that went out of business. Very nice and strong bag for Electrostatic Free Barrier Bags (MIL-PRF-81705 Type I), (For packaging electro static sensitive devices, micro circuits, semi-conductors, thin film resistors and associates airborne components)