The 1910-10X12 is a metal-in static shielding bag manufactured from a polyester, metal, polyethylene laminate. The polyester dielectric in concert with the metal layer is intended to provide shielding of Electrostatic Discharge (ESD) and to help minimize the penetration of electric field. This is ziptop bag. The bag is heat sealable. Dimensions are 10"(W) x 12"(L).